The Chevrolet Corvette is a line of American two-door, two-seater sports cars manufactured and marketed by General Motors under the Chevrolet marque since 1953.
123-587: The National Corvette Museum showcases the Chevrolet Corvette , an American sports car that has been in production since 1953. It is located in Bowling Green, Kentucky , off Interstate 65 's Exit 28 and near General Motors ' Bowling Green Assembly Plant , where Corvettes are manufactured. It was constructed in 1994. It was opened to the public in September of that year. The mission of
246-593: A monocoque shell and more like a bowl. One thousand were produced. A key role in developing the unitary body was played by the American firm the Budd Company, now ThyssenKrupp Budd . Budd supplied pressed-steel bodywork, fitted to separate frames, to automakers Dodge , Ford , Buick , and the French company, Citroën . In 1930, Joseph Ledwinka , an engineer with Budd, designed an automobile prototype with
369-469: A motor vehicle to which all other components are attached, comparable to the skeleton of an organism. Until the 1930s, virtually every car had a structural frame separate from its body. This construction design is known as body-on-frame . By the 1960s, unibody construction in passenger cars had become common, and the trend to unibody for passenger cars continued over the ensuing decades. Nearly all trucks , buses, and most pickups continue to use
492-461: A sinkhole opened under the floor of the Skydome area of the museum at around 5:44 AM local time, causing a portion of the floor to collapse. Kentucky is one of the many states that is notable for having karst topography . Karst topography is the landscape that is formed from the dissolving of rocks such as limestone. In the museum's case, the sinkhole was caused by the dissolving of the limestone in
615-514: A "one hp per cubic inch" slogan for advertising the 283 hp (211 kW; 287 PS) 283 cu in (4.64 L) Small-Block engine . Other options included power windows (1956), hydraulically assisted convertible top (1956), heavy-duty brakes and suspension (1957), and four-speed manual transmission (late 1957). Delco Radio transistorized signal-seeking "hybrid" car radio, which used both vacuum tubes and transistors in its radio's circuitry (1956 option). The 1958 Corvette received
738-588: A 265 cu in (4.34 L) V8 engine as an option. The new V8 improved 0–60 mph (0–97 km/h) acceleration by 3 seconds. With a large inventory of unsold 1954 models, GM limited production to 700 units for 1955. Despite the poor sales of the Corvette at the time, the V8 was a popular option, with an estimated six cars produced with the inline-six. Three new competitors, the Ford Thunderbird ,
861-470: A 390 hp (291 kW; 395 PS) rating. The ZR-1 special package was an option available on the 1970 through 1972 model years, and included the LT-1 engine combined with special racing equipment. Only 53 ZR-1's were built. In 1971, to accommodate regular low-lead fuel with lower anti-knock properties, the engine compression ratios were lowered which resulted in reduced power ratings. The power rating for
984-405: A C-shaped beam running the length of the vehicle. C-channel is typically more flexible than (fully) boxed of the same gauge. Hat frames resemble a "U" and may be either right-side-up or inverted, with the open area facing down. They are not commonly used due to weakness and a propensity to rust. However, they can be found on 1936–1954 Chevrolet cars and some Studebakers . Abandoned for a while,
1107-414: A Corvette). An all-new LS1 aluminum engine (Gen III small block) featured individual ignition coils for each cylinder, and aluminum block and pistons. It was initially rated at 345 hp (257 kW; 350 PS) and 350 lb⋅ft (470 N⋅m), but was increased to 350 hp (261 kW; 355 PS) in the 2001 edition. The new engine, combined with the new body, was able to achieve up to 28 mpg on
1230-681: A Corvette, the Z06 featured a full aluminum chassis. The frame mirrored the C5/6 architecture, but substituted aluminum hydroformed rails and aluminum extrusions and castings fore and aft. This dropped weight from 419 to 287 pounds while improving chassis stiffness. For 2008, the Corvette received a mild freshening: a new LS3 engine with displacement increased to 6.2 L (380 cu in), resulting in 430 hp (321 kW; 436 PS) and 424 lb⋅ft (575 N⋅m) (436 hp (325 kW; 442 PS) and 428 lb⋅ft (580 N⋅m) if ordered with
1353-408: A body and interior revisions including a longer front end with quad headlamps, bumper exiting exhaust tips, revised steering wheel, and a dashboard with all gauges mounted directly in front of the driver. For 1958 only were 1958 hood louvers and twin trunk spears. The 1959–60 model years had few changes except a decreased amount of body chrome and more powerful engine offerings. In 1961, the rear of
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#17327657880181476-408: A distinctive tapering rear deck (a feature that later reappeared on the 1971 "Boattail" Buick Riviera ) with, for 1963 only, a split rear window. The Sting Ray featured hidden headlamps, non-functional hood vents, and an independent rear suspension . Corvette chief engineer Zora Arkus-Duntov never liked the split rear window because it blocked rear vision, but Mitchell thought it to be a key part of
1599-540: A full unitary construction. Citroën purchased this fully unitary body design for the Citroën Traction Avant . This high-volume, mass-production car was introduced in 1934 and sold 760,000 units over the next 23 years of production. This application was the first iteration of the modern structural integration of body and chassis, using spot welded deeply stamped steel sheets into a structural cage, including sills, pillars, and roof beams. In addition to
1722-470: A ladder frame, but the middle sections of the frame rails sit outboard of the front and rear rails, routed around the passenger footwells, inside the rocker and sill panels. This allowed the floor pan to be lowered, especially the passenger footwells, lowering the passengers' seating height and thereby reducing both the roof-line and overall vehicle height, as well as the center of gravity, thus improving handling and road-holding in passenger cars. This became
1845-420: A ladder, the ladder frame is one of the oldest, simplest, and most frequently used under-body, separate chassis/frame designs. It consists of two symmetrical beams, rails, or channels, running the length of the vehicle, connected by several transverse cross-members. Initially seen on almost all vehicles, the ladder frame was gradually phased out on cars in favor of perimeter frames and unitized body construction. It
1968-560: A lightweight, multi-tubular, triangulated frame over which an aerodynamic aluminum body was crafted. In 1994, the Audi A8 was the first mass-market car with an aluminium chassis, made feasible by integrating an aluminium space-frame into the bodywork. Audi A8 models have since used this construction method co-developed with Alcoa , and marketed as the Audi Space Frame . The Italian term Superleggera (meaning 'super-light')
2091-472: A platform frame. The frame of the Citroën 2CV used a minimal interpretation of a platform chassis under its body. In a (tubular) spaceframe chassis, the suspension, engine, and body panels are attached to a three-dimensional skeletal frame of tubes, and the body panels have limited or no structural function. To maximize rigidity and minimize weight, the design frequently makes maximum use of triangles, and all
2214-537: A rear mid-engined layout with the C8 generation. In 1953, GM executives accepted a suggestion by Myron Scott , then the assistant director of the Public Relations department, to name the company's new sports car after the corvette , a small, maneuverable warship. The first model, a convertible , was introduced at the 1953 GM Motorama as a concept car ; production models went on sale later that year. In 1963,
2337-520: A separate frame as their chassis. The main functions of a frame in a motor vehicle are: Typically, the material used to construct vehicle chassis and frames include carbon steel for strength or aluminum alloys to achieve a more lightweight construction. In the case of a separate chassis, the frame is made up of structural elements called the rails or beams . These are ordinarily made of steel channel sections by folding, rolling, or pressing steel plate. There are three main designs for these. If
2460-456: A subframe). The unibody is now the preferred construction for mass-market automobiles. This design provides weight savings, improved space utilization, and ease of manufacture. Acceptance grew dramatically in the wake of the two energy crises of the 1970s and that of the 2000s in which compact SUVs using a truck platform (primarily the USA market) were subjected to CAFE standards after 2005 (by
2583-399: A tweaked LS3 with a forged crank, are built in Z06 fashion by hand, and utilize a dry-sump oil system. The first three gears were also made shorter for better throttle response and faster acceleration. A new launch control system was introduced for all models that allow for sub-4-second 0–60. EPA is estimated at 26 MPG highway, 1.0 G on skid pad. Beginning with the 2011 model year, buyers of
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#17327657880182706-478: A two-piece, tapering urethane bumper cover replaced the Kamm-tail and chrome bumper blades, and matched the new front design from the previous year. The 1975 model year ended the convertible body style until it returned 11 years later, and Dave McLellan succeeded Zora Arkus-Duntov as the Corvette's Chief Engineer. For the 1976 models the fiberglass floor was replaced with steel panels to provide protection from
2829-635: A two-tone Silver Anniversary Edition and an Indy Pace Car replica edition of the C3. This was also the first time that a Corvette was used as a Pace Car for the Indianapolis 500 . Engines and chassis components were mostly carried over from the C2, but the body and interior were new. The 350 cu in (5.7 L) engine replaced the old 327 cu in (5.36 L) as the base engine in 1969, but power remained at 300 hp (224 kW; 304 PS). 1969
2952-584: A unitary body with no separate frame, the Traction Avant also featured other innovations such as front-wheel drive . The result was a low-slung vehicle with an open, flat-floored interior. For the Chrysler Airflow (1934–1937), Budd supplied a variation – three main sections from the Airflow's body were welded into what Chrysler called a bridge-truss construction. Unfortunately, this method
3075-543: A weaker-than-usual frame and body framework welded to the chassis to provide stiffness, in 1960, Chrysler moved from body-on-frame construction to a unit-body design for most of its cars. Most of the American-manufactured unibody automobiles used torque boxes in their vehicle design to reduce vibrations and chassis flex, except for the Chevy II , which had a bolt-on front apron (erroneously referred to as
3198-644: Is equal to that of the C4 ZR-1, the improved rigidity, suspension, brakes, and reduced weight of the C5 produced a car quicker than C4 ZR-1. For the C6 Corvette GM wanted to focus more on refining the C5 than trying to redesign it. Car & Driver, and Motor Trend, described the C6 as an "evolution of the C5, instead of a complete redo". The C6 wheelbase was increased while body overhangs were decreased when compared to
3321-492: Is fitted with Computer Aided Gear Selection (CAGS) to improve fuel economy by requiring drivers to shift from 1st gear directly to 4th in low-speed/low-throttle conditions. This feature helps the C6 avoid the Gas Guzzler Tax by achieving better fuel economy. The new Z06 arrived as a 2006 model in the third quarter of 2005. It has a 7.0 L version of the small block engine codenamed LS7 . At 427.6 cubic inches,
3444-462: Is in running condition. The third-generation Corvette, patterned after the Mako Shark II concept car, was introduced for the 1968 model year and was in production until 1982. C3 coupes featured the first use of T-top removable roof panels. It introduced monikers that were later revived, such as LT-1, ZR-1, Z07, and Collector Edition. In 1978, Corvette's 25th anniversary was celebrated with
3567-404: Is now "considered standard in the industry". By 1960, the unitized body design was used by Detroit's Big Three on their compact cars ( Ford Falcon , Plymouth Valiant , and Chevrolet Corvair ). After Nash merged with Hudson Motors to form American Motors Corporation , its Rambler-badged automobiles continued exclusively building variations of the unibody. Although the 1934 Chrysler Airflow had
3690-408: Is now seen mainly on large trucks. This design offers good beam resistance because of its continuous rails from front to rear, but poor resistance to torsion or warping if simple, perpendicular cross-members are used. The vehicle's overall height will be greater due to the floor pan sitting above the frame instead of inside it. A backbone chassis is a type of automotive construction with chassis that
3813-407: Is similar to the body-on-frame design. Instead of a relatively flat, ladder-like structure with two longitudinal, parallel frame rails, it consists of a central, strong tubular backbone (usually rectangular in cross-section) that carries the power-train and connects the front and rear suspension attachment structures. Although the backbone is frequently drawn upward into, and mostly above the floor of
National Corvette Museum - Misplaced Pages Continue
3936-497: Is sometimes also referred to as a monocoque structure, because the car's outer skin and panels are made load-bearing, there are still ribs, bulkheads, and box sections to reinforce the body, making the description semi-monocoque more appropriate. The first attempt to develop such a design technique was on the 1922 Lancia Lambda to provide structural stiffness and a lower body height for its torpedo car body. The Lambda had an open layout with unstressed roof, which made it less of
4059-507: Is still used in modern-day sport utility vehicles such as the Jeep Grand Cherokee and Land Rover Defender . This design is also used in large vans such as Ford Transit , VW Crafter and Mercedes Sprinter . A subframe is a distinct structural frame component, to reinforce or complement a particular section of a vehicle's structure. Typically attached to a unibody or a monocoque, the rigid subframe can handle great forces from
4182-439: The 1 ⁄ 4 mile (0.40 km) in 10.89 seconds. There was an extended production run for the 1969 model year due to a lengthy labor strike, which meant sales were down on the 1970 models, to 17,316. 1970 small-block power peaked with the optional high compression, high-revving small-block LT-1 that produced 370 hp (276 kW; 375 PS). The 427 big-block was enlarged to 454 cu in (7.44 L) with
4305-544: The Hornets and all-wheel-drive Eagles for a new type of frame called the "Uniframe [...] a robust stamped steel frame welded to a strong unit-body structure, giving the strength of a conventional heavy frame with the weight advantages of Unibody construction." This design was also used with the XJC concept developed by American Motors before its absorption by Chrysler, which later became the Jeep Grand Cherokee (ZJ) . The design
4428-582: The Shelby Cobra , GM planned to manufacture 100 to 125 Grand Sport Corvettes, but only five were actually built. They were driven by historic drivers such as Roger Penske , A. J. Foyt , Jim Hall , and Dick Guldstrand among others. Those five cars (001–005) are all held by private owners, and are among the most coveted and valuable Corvettes ever built. 002 is exhibited in the Simeone Foundation Automotive Museum and
4551-553: The Studebaker Speedster , and the larger Chrysler C-300 were introduced that same year. A new body was introduced for the 1956 model featuring a revised front end and side coves; the taillamp fins were deleted. An optional " Ramjet " fuel injection system was made available midway through the 1957 model year. It was one of the first American mass-produced engines in history to reach 1 horsepower per cubic inch (0.046 kW/cm ) and Chevrolet's advertising agency used
4674-416: The catalytic converter 's high operating temperature . For 15 model years the names Corvette, Sting Ray, and Stingray were synonymous. 1977 was the last year the tunneled roof treatment with a vertical back window was used, in addition, leather seats were available at no additional cost for the first time. The black exterior color returned after a six-year absence. The 1978 25th Anniversary model introduced
4797-467: The fastback glass rear window and featured a new interior and dashboard. Corvette's 25th anniversary was celebrated with the Indy 500 Pace Car limited edition and a Silver Anniversary model featuring silver over gray lower body paint. All 1979 models featured the previous year's pace car seats and offered the front and rear spoilers as optional equipment. 53,807 were produced for the model year, making 1979
4920-652: The front-engine , rear-wheel drive (RWD) platform was retained to keep production costs lower. Promotional efforts towards a new generation of buyers included a camouflaged version of the car was made available in the popular video game Gran Turismo 5 in November 2012, and the C7 being featured as the 2013 Indianapolis 500 pace car, the Corvette's 12th time in that spotlight. The 2014 Chevrolet Corvette included an LT1 6.2 L V8 (376 cu in) making 455 hp (339 kW; 461 PS) or 460 hp (343 kW; 466 PS) with
5043-410: The 1960s, the boxed frames of conventional American cars were spot-welded in multiple places down the seam; when turned into NASCAR "stock car" racers, the box was continuously welded from end to end for extra strength. While appearing at first glance as a simple form made of metal, frames encounter significant stress and are built accordingly. The first issue addressed is "beam height", or the height of
National Corvette Museum - Misplaced Pages Continue
5166-454: The 1973 Corvette's chrome front bumper was changed to a 5-mile-per-hour (8 km/h) system with a urethane bumper cover, while the rear retained the two-piece chrome bumper set, its last year. The optional wire-spoked wheel covers (left) were offered for the last time in 1973. Only 45 Z07 were built in 1973. From 1974 onwards both the front and rear bumpers were polyurethane. In 1974, a 5-mile-per-hour (8 km/h) rear bumper system with
5289-487: The 1983 model year produced that were never sold. All of the 1983 prototypes were destroyed or serialized as 1984 model year except one white example with a medium blue interior. After extensive testing and modifications were completed, it was initially retired as a display sitting in an external wall over the Bowling Green Assembly Plant's employee entrance. Later this only surviving 1983 prototype
5412-528: The 2004 model year. The C5 was a completely new design featuring new concepts and manufacturing innovations, subsequently carried forward to the C6 & C7. With a top speed of 176 mph (283 km/h), the C5 was noted by the automotive press as an advance, with improved dynamics in nearly every area over the C4. Innovations included a 0.29 drag coefficient, a notably lower weight with near 50/50 weight distribution, and active handling (the first stability control for
5535-501: The 350 cu in (5.7 L) L48 base engine decreased from 300 to 270 horsepower and the optional special high-performance LT1 engine decreased from 370 to 330 horsepower. The LS5 454 cu in (7.4 L) motor was carried over and produced 365 hp (272 kW; 370 PS). Offered in ‘71 only was the LS6 454 cu in (7.4 L) big-block featuring aluminum heads and delivering 425 hp (317 kW; 431 PS),
5658-452: The 350 cu in (5.7 L) L83 "Crossfire" V8 engine from the final 1982 third-generation model. New chassis features were aluminum brake calipers and an all-aluminum suspension for weight savings and rigidity. The new one-piece Targa top had no center reinforcement. Retractable headlights continued to be used, but became single units, which had been last used in 1957. A new electronic dashboard with digital liquid crystal displays for
5781-469: The 454 big-block engine was discontinued. Gradual power increases after 1975 peaked in 1980 with the model's optional L82 producing 230 hp (172 kW; 233 PS) in its final year. 1981 saw a single engine, the L81, which had 190 hp (142 kW; 193 PS) while the fuel-injected 1982 L83 had 200 hp (149 kW; 203 PS). Styling changed subtly throughout the generation until 1978 for
5904-587: The C5. Retractable headlights were replaced with fixed units, for the first time since 1962. The C6 brought a new and improved interior compared to the C5. As a result of the upgraded interior, the C6 had a slight increase in passenger hip room. It also sported an updated engine called the LS2, which bumped the 5.7 L (350 cu in) LS1/LS6 to 6.0 L (364 cu in) and gained 50 HP, delivering 400 hp (298 kW; 406 PS) at 6000 rpm and 400 lb⋅ft (540 N⋅m) at 4400 rpm, and giving
6027-689: The Corvette Z06 and ZR1 were offered the opportunity to assist in the build of their engines. Titled the "Corvette Engine Build Experience," buyers paid extra to be flown to the Wixom, Michigan Performance Build Center. Participants helped the assembly line workers build the V8 engine, then took delivery of the car at the National Corvette Museum in Bowling Green, KY, near the Corvette final assembly point. The last C6 Corvette
6150-409: The Corvette is noted for its performance, distinctive styling, lightweight fiberglass or composite bodywork, and competitive pricing. The Corvette has had domestic mass-produced two-seater competitors fielded by American Motors , Ford , and Chrysler ; it is the only one continuously produced by a United States auto manufacturer. It serves as Chevrolet's halo car . Since its introduction in 1953,
6273-598: The Grand Sport and Collector Edition, OBD II (On-Board Diagnostics), run-flat tires, and the LT4 engine. The 330 hp (246 kW; 335 PS) LT4 V8 was available only with a manual transmission, while all 300 hp (224 kW; 304 PS) LT1 Corvettes used automatic transmissions. Chevrolet released the Grand Sport (GS) version in 1996 to mark the end of production of the C4 Corvette. The Grand Sport moniker
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#17327657880186396-414: The National Corvette Museum is to educate worldwide audiences on the evolution of the Corvette – America's Sports Car – through the collection, preservation, and celebration of its legacy. The museum offers captivating exhibits , immersive experiences, Corvette manufacturing plant tours , and unique offerings that engage visitors of all ages and backgrounds in the history of Corvette. On February 12, 2014,
6519-404: The Skydome were immediately removed from that area. Between March 3, 2014, and March 6, 2014, 5 of the 8 Corvettes were recovered from the sinkhole. The spire area of the Skydome was reinforced before work started on removing the final three buried cars. Multiple multigravity tests were done to ensure that another sinkhole wasn't present or in the making. The results came back clear which allowed for
6642-457: The Z06 unprecedented handling thanks to upgraded brakes and less body flex. Those characteristics, along with the use of materials such as a titanium exhaust system and a carbon fiber hood in the 2004 model year, led to further weight savings and performance gains for the C5 Z06. The LS6 was later upgraded to 405 hp (302 kW; 411 PS) for 2002–2004. Although the Z06's rated power output
6765-453: The Z06 was the largest small block ever offered by General Motors. Because of the Corvette's former use of 427 cubic-inch big blocks in the late-1960s and early 1970s, the LS7's size was rounded down to 427 cubic inches. Official output was 505 hp (377 kW; 512 PS) and has a 0–60 mph (0–97 km/h) time of 3.7 seconds. Top speed is 198 mph (319 km/h). Another first for
6888-727: The ZR-1 option, which then replaced it. Early B2Ks produced 345 hp (257 kW; 350 PS) and 450 lb⋅ft (610 N⋅m); later versions boasted 450 hp (336 kW; 456 PS) and 613 lb⋅ft (831 N⋅m). 1988 saw the 35th Anniversary Edition of the Corvette. In 1990, the ZR1 option Corvette was introduced with the LT5 engine designed by Lotus and built in the Mercury Marine plant in Stillwater, Oklahoma. The LT5 engine
7011-455: The addition of a chassis. The terms "unibody" and "unit-body" are short for "unitized body", "unitary construction", or alternatively (fully) integrated body and frame/chassis. It is defined as: A type of body/frame construction in which the body of the vehicle, its floor plan and chassis form a single structure. Such a design is generally lighter and more rigid than a vehicle having a separate body and frame. Vehicle structure has shifted from
7134-431: The axles and then back down on the other side for bumper placement. Kick-ups do the same thing without curving down on the other side and are more common on the front ends. Another feature are the tapered rails that narrow vertically or horizontally in front of a vehicle's cabin. This is done mainly on trucks to save weight and slightly increase room for the engine since the front of the vehicle does not bear as much load as
7257-479: The back. Design developments include frames that use multiple shapes in the same frame rail. For example, some pickup trucks have a boxed frame in front of the cab, shorter, narrower rails underneath the cab, and regular C-rails under the bed. On perimeter frames, the areas where the rails connect from front to center and center to rear are weak compared to regular frames, so that section is boxed in, creating what are called "torque boxes". Named for its resemblance to
7380-486: The base and ZR-1 models besides the wider rear wheels was the location of the CHMSL, which was integrated into the new rear fascia used on the base model, but remained at the top of the rear hatch on the ZR-1's. For the 1992 model year, the 300 hp (224 kW) LT1 engine was introduced, an increase of 50 hp (37 kW) over 1991's L98 engine. This engine featured reverse-flow cooling (the heads were cooled before
7503-533: The beginning of the end for the Rochester fuel injection system. The 396 cu in (6.49 L) option cost US$ 292.70 while the fuel injected 327 cu in (5.36 L) engine cost US$ 538.00 . Few could justify spending US$ 245.00 more for 50 hp (37 kW; 51 PS) less, even though FI could deliver over 20 mpg on the highway and would keep delivering fuel despite high G-loading in corners taken at racing speeds. Another 1963 and 1964 option
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#17327657880187626-462: The block), which allowed for a higher compression ratio of 10.5:1. Also new for 1992 was Acceleration Slip Regulation (ASR), a form of traction control that utilized the Corvette's brakes, spark retard, and throttle close-down to prevent excessive rear wheel spin and possible loss of control. Production of the ZR-1 ended in 1995 after 6,939 cars had been built. 1996 was the final year of C4 production, and featured special models and options, including
7749-466: The car of "the successful plumber." John Fitzpatrick, Corvette's marketing manager said "It's the old saying, 'Nobody wants to be seen driving an old man's car, but everybody wants to be seen driving a young man's car.' " Originally set to be introduced for the 2011 model year, the C7's debut was delayed until the 2014 model year to make changes to make the car more appealing to younger buyers. Mid-engine and rear-engine layouts had been considered, but
7872-471: The car was completely redesigned with the addition of a tapered tail with four round lights. The light treatment would continue for all following model year Corvettes until 2014. In 1962, the Chevrolet 283 cu in (4.64 L) Small-Block was enlarged to 327 cu in (5.36 L). In standard form it was rated at 250 hp (186 kW; 253 PS). For an additional 12% over list price,
7995-484: The car's 25th anniversary. The Sting Ray nameplate was not used on the 1968 model, but Chevrolet still referred to the Corvette as a Sting Ray; however, 1969 (through 1976) models used the " Stingray " name as one word, without the space. In 1970, the body design was updated including fender flares, and interiors were refined, including redesigned seats and indication lights near the gear shift that were an early use of fiber optics. To comply with government safety regulations
8118-692: The chance to virtually recover the cars that were in the sinkhole. The museum also sponsors the Corvette Hall of Fame for individuals who have been involved with the Corvette automobile and made significant contributions in their respective fields. Each year, from two to six persons have been inducted into this select group. Members have been divided into three categories: enthusiasts, GM/Chevrolet, and racing. 37°00′15″N 86°22′30″W / 37.00417°N 86.37500°W / 37.00417; -86.37500 Chevrolet Corvette Throughout eight generations, indicated sequentially as C1 to C8,
8241-662: The components needs to be stamped with ridges and hollows to give it strength. Platform chassis were used on several successful European cars, most notably the Volkswagen Beetle , where it was called "body-on-pan" construction. Another German example are the Mercedes-Benz "Ponton" cars of the 1950s and 1960s, where it was called a "frame floor" in English-language advertisements. The French Renault 4 , of which over eight million were made, also used
8364-399: The construction work to begin. For an added precaution, micropiles , or systems of steel rods, were inserted into the ground before the concrete was repoured to help give the building more support. The museum reopened the day after the sinkhole appeared. An exhibit opened in the museum two years later to tell the story of what happened that day and why it happened. This exhibit gives visitors
8487-421: The early 1960s television show Route 66 , "the Corvette became synonymous with freedom and adventure," ultimately becoming both "the most successful concept car in history and the most popular sports car in history." The first generation of Corvette was introduced late in the 1953 model year , appearing as a show car for the 1953 General Motors Motorama, January 17–23 at New York's Waldorf-Astoria Hotel . At
8610-435: The engine and drive train. It can transfer them evenly to a wide area of relatively thin sheet metal of a unitized body shell. Subframes are often found at the front or rear end of cars and are used to attach the suspension to the vehicle. A subframe may also contain the engine and transmission . It normally has pressed or box steel construction but may be tubular and/or other material. Examples of passenger car use include
8733-406: The entire design. Maximum power for 1963 was 360 hp (268 kW; 365 PS) and was raised to 375 hp (280 kW; 380 PS) in 1964. Options included electronic ignition , the breakerless magnetic pulse-triggered Delcotronic first offered on some 1963 Pontiac models. On 1964 models the decorative hood vents were eliminated and Duntov, the Corvette's chief engineer, got his way with
8856-497: The factory. From 1967 through 1969, the Holley triple two-barrel carburetor , or Tri-Power , was available on the 427 L89 (a $ 368 option, on top of the cost for the high-performance 427). Despite these changes, sales slipped more than 15%, to 22,940 (8,504 coupes, off close to 15%, and 14,436 convertibles, down nearly 19%). Duntov came up with a lightweight version of the C2 in 1962. Concerned about Ford and what they were doing with
8979-537: The forces in each strut are either tensile or compressive, never bending, so they can be kept as thin as possible. The first true spaceframe chassis were produced in the 1930s by Buckminster Fuller and William Bushnell Stout (the Dymaxion and the Stout Scarab ) who understood the theory of the true spaceframe from either architecture or aircraft design. The 1951 Jaguar C-Type racing sports car utilized
9102-483: The fuel-injected version produced 360 hp (268 kW; 365 PS), making it the fastest of the C1 generation. 1962 was also the last year for the wraparound windshield, solid rear axle, and convertible-only body style. The trunk lid and exposed headlamps did not reappear for many decades. The second generation (C2) Corvette, which introduced Sting Ray to the model, continued with fiberglass body panels, and overall,
9225-484: The ground which caused pockets to open underneath the surface. Eventually, the weight of the building caused the top layer of soil to collapse. Eight rare and one-of-a-kind Corvettes, portions of the display stands, rails, large concrete floor, slabs and dirt fell into the sinkhole, causing serious damage to some of the Corvettes. The Corvettes involved have an estimated value of a million dollars. The remaining 20 cars in
9348-400: The hat frame regained popularity when companies started welding it to the bottom of unibody cars, effectively creating a boxed frame. Originally, boxed frames were made by welding two matching C-rails together to form a rectangular tube. Modern techniques, however, use a process similar to making C-rails in that a piece of steel is bent into four sides and then welded where both ends meet. In
9471-593: The highest of the 1970-1972 series, and could be ordered with an automatic transmission. For the 1972 model year, GM moved to the SAE Net measurement which resulted in further reduced, but more realistic, power ratings than the previous SAE Gross standard. Although the 1972 model's 350 cu in (5.7 L) horsepower was actually the same as that for the 1971 model year, the lower net horsepower numbers were used instead of gross horsepower. The L48 base engine rating fell to 200 hp (149 kW; 203 PS) SAE and
9594-457: The highway. For its first year, the C5 was available only as a coupe, though the new platform was designed from the ground up to be a convertible, introduced for model year 1998. A fixed-roof coupe (FRC) followed in 1999. One concept for the FRC was for it to be a stripped-down model with a possible V6 engine (nicknamed in-house as the "Billy Bob"). By 2000, FRC plans laid the groundwork for
9717-409: The largest effect on the styling of this generation, although it had no top and did not give away what the final version of the C2 would look like. The third inspiration was a mako shark Mitchell had caught while deep-sea fishing. Production started for the 1963 model year and ended in 1967. Introducing a new name, "Sting Ray", the 1963 model was the first year for a Corvette coupé and it featured
9840-433: The last available with a manual transmission until well into the 1984 production run. In 1982, a fuel-injected engine returned, and a final C3 tribute Collectors Edition featured an exclusive, opening rear window hatch. The fourth-generation Corvette was the first complete redesign of the Corvette since 1963. Production was to begin for the 1983 model year, but quality issues and part delays resulted in only 43 prototypes for
9963-560: The late 2000s truck-based compact SUVs were phased out and replaced with crossovers). An additional advantage of a strong-bodied car lies in the improved crash protection for its passengers. American Motors (with its partner Renault ) during the late 1970s incorporated unibody construction when designing the Jeep Cherokee (XJ) platform using the manufacturing principles (unisides, floorplan with integrated frame rails and crumple zones, and roof panel) used in its passenger cars, such as
10086-548: The main body. It was so successful that the Soviet post-war mass produced GAZ-M20 Pobeda of 1946 copied unibody structure from the Opel Kapitän. Later Soviet limousine GAZ-12 ZIM of 1950 introduced unibody design to automobiles with a wheelbase as long as 3.2 m (126 in). The streamlined 1936 Lincoln-Zephyr with conventional front-engine, rear-wheel-drive layout utilized a unibody structure. By 1941, unit construction
10209-578: The material is folded twice, an open-ended cross-section, either C-shaped or hat-shaped (U-shaped), results. "Boxed" frames contain closed chassis rails, either by welding them up or by using premanufactured metal tubing . By far the most common, the C-channel rail has been used on nearly every type of vehicle at one time or another. It is made by taking a flat piece of steel (usually ranging in thickness from 1/8" to 3/16", but up to 1/2" or more in some heavy-duty trucks ) and rolling both sides over to form
10332-471: The middle of the production year and selling over 2,000 in just a few months. For 1966, Chevrolet introduced an even larger 427 cu in (7.00 L) Big Block version. Other options available on the C2 included the Wonderbar auto-tuning AM radio, AM-FM radio (mid-1963), air conditioning (late-1963), a telescopic steering wheel (1965), and headrests (1966). The Sting Ray's independent rear suspension
10455-455: The new generation's structure included a carbon fiber hood and removable roof panel. The fenders, doors, and rear quarter panels remained composite. At the rear of the car, the trademark round taillights changed to a more squarish form. The underbody panels were made of "carbon-nano" composite and it made use of a new aluminum frame that located the four wheels an inch farther apart, front to rear and side to side. Luggage space decreased by 33% from
10578-545: The next. Three hundred hand-built Corvette convertibles were produced, all Polo White, for the 1953 model year. The 1954 model year vehicles could be ordered in Pennant Blue, Sportsman Red, Black, or Polo White; 3,640 were manufactured. The 1953, 1954, and 1955 model years were the only Corvettes equipped with a 235 cu in (3.9 L) version of the second-generation Blue Flame inline-six rated at 150 hp (112 kW; 152 PS). The 1955 model offered
10701-411: The optional LT1 dropped to 270 hp (201 kW; 274 PS) SAE. 1974 models had the last true dual exhaust system that was dropped on the 1975 models with the introduction of catalytic converters requiring the use of no-lead fuel. Engine power decreased with the base ZQ3 engine producing 165 hp (123 kW; 167 PS), the optional L82's output 205 hp (153 kW; 208 PS), while
10824-417: The optional performance exhaust). The six-speed manual transmission also has improved shift linkage and a 0–60 mph (0–97 km/h) time of 4.0 seconds, while the automatic is set up for quicker shifts giving the C6 automatic a 0–60 mph (0–97 km/h) time of 4.0 seconds, quicker than any other production automatic Corvette. The interior was slightly updated and a new 4LT leather-wrap interior package
10947-552: The optional performance exhaust. The LT1 engine (the "LT1" designation was first used by GM in 1970 and then later in 1992.) is in the Gen V family of small block engines, which was used in GM vehicles as the new small V8 option. It featured three new advanced technologies: direct injection, variable valve timing, and an active fuel management system. Fuel injectors are located under the intake manifold. The Corvette remained rear-wheel drive with
11070-587: The overall height of the vehicles regardless of the increase in the size of the transmission and propeller shaft humps since each row had to cover frame rails as well. Several models had the differential located not by the customary bar between axle and frame, but by a ball joint atop the differential connected to a socket in a wishbone hinged onto a crossmember of the frame. The X-frame was claimed to improve on previous designs, but it lacked side rails and thus did not provide adequate side impact and collision protection. Perimeter frames replaced this design. Similar to
11193-566: The peak production year for all versions of the Corvette. Sales have trended downward since then. In 1980, the Corvette received an integrated aerodynamic redesign that resulted in a significant reduction in drag . After several years of weight increases, 1980 Corvettes were lighter as engineers trimmed both body and chassis weight. In mid-1981, production relocated from St. Louis , to Bowling Green, Kentucky (where all subsequent Corvette generations have since been manufactured), and several two-tone paint options were offered. The 1981 models were
11316-505: The prevalent design for body-on-frame cars in the United States, but not in the rest of the world, until the unibody gained popularity. For example, Hudson introduced this construction on their 3rd generation Commodore models in 1948. This frame type allowed for annual model changes , and lower cars, introduced in the 1950s to increase sales – without costly structural changes. The Ford Panther platform , discontinued in 2011,
11439-454: The previous generation's C6 ZR1 model (3,324 lb (1,508 kg)), which included a supercharger and intercooler. Chevrolet announced the C7 Z06 at the 2014 Detroit Auto Show. The 2015 Z06 Corvette produced 650 hp from the supercharged LT4 aluminum 6.2 L V8 engine. Unibody A vehicle frame , also historically known as its chassis , is the main supporting structure of
11562-533: The previous generation's. The overall weight of the car was not announced by General Motors for many months after its first showing in January 2013. Despite the increased use of aluminum and other light weight materials, numerous publications reported that the weight would remain essentially unchanged from that of the previous generation's. In August 2013, the weight of the new Corvette was reported to be 3,444 lb (1,562 kg), meaning it would weigh more than
11685-409: The return in 2001 of the Z06, an RPO option not seen since Zora's 1963 race-ready Corvette. The Z06 model replaced the FRC model as the highest-performance C5 Corvette. Instead of a heavier double-overhead cam engine like the ZR-1 of the C4 generation, the Z06 used an LS6, a 385 hp (287 kW; 390 PS) derivative of the standard LS1 engine. Using the much more rigid fixed roof design allowed
11808-527: The second generation was introduced in coupe and convertible styles. Initially manufactured in Flint, Michigan , and St. Louis, Missouri , the Corvette has been produced in Bowling Green, Kentucky , since 1981, which is also the location of the National Corvette Museum . The Corvette has become widely known as "America's Sports Car." Automotive News wrote that after being featured in
11931-451: The speedometer and tachometer was standard. Beginning in 1985, the 230 hp (172 kW; 233 PS) L98 engine with tuned port fuel injection became the standard engine. September 1984 through 1988 Corvettes were available with a "4+3" transmission designed by Doug Nash - a four-speed manual coupled to an automatic overdrive on the top three gears. It was devised to help the Corvette meet U.S. fuel economy standards. Since 1981 (when it
12054-411: The split rear window changed to a full-width window. Four-wheel disc brakes were introduced in 1965, as was a " big block " engine option: the 396 cu in (6.49 L) V8. Side exhaust pipes were also optionally available in 1965, and continued to be offered through 1967. The introduction of the 425 hp (317 kW; 431 PS) 396 cu in (6.49 L) big block in 1965 spelled
12177-419: The time, Chevrolet general manager Thomas H. Keating said it was six months to a year away from production readiness. The car generated sufficient interest for mass production to begin on June 30, 1953. Uniquely, the original Corvette used fiberglass bodywork, its reinforcement placed by hand. This generation was often referred to as the "solid-axle" models, with independent rear suspension appearing in
12300-648: The traditional body-on-frame architecture to the lighter unitized/integrated body structure that is now used for most cars. Integral frame and body construction requires more than simply welding an unstressed body to a conventional frame. In a fully integrated body structure, the entire car is a load-carrying unit that handles all the loads experienced by the vehicle – forces from driving and cargo loads. Integral-type bodies for wheeled vehicles are typically manufactured by welding preformed metal panels and other components together, by forming or casting whole sections as one piece, or by combining these techniques. Although this
12423-404: The transaxle located in the rear. Transmission choices included a 7-speed manual or a 6-speed (2014) / 8-speed (2015-) automatic with paddle shifters. The new interior included wide-bottom seats as standard, with sportier versions with high side bolsters optional. The Corvette's flag logo was revised for the new car and a small casting of a stingray was added to the car's ornamentation. Features of
12546-453: The transition areas from front to center and center to rear reduce beam and torsional resistance and is used in combination with torque boxes and soft suspension settings. This is a modification of the perimeter frame, or of the backbone frame, in which the passenger compartment floor, and sometimes the luggage compartment floor, have been integrated into the frame as loadbearing parts for strength and rigidity. The sheet metal used to assemble
12669-606: The two-seater has steadily moved upmarket. Initially, a relatively modest, lightweight 6‑cylinder convertible , subsequent introductions of V8 engines, competitive chassis innovations, and rear mid-engined layout have positioned the Corvette in the supercar class. The first three Corvette generations (1953–1983) employed body-on-frame construction, and since the C4 generation, introduced in 1983 as an early 1984 model, Corvettes have used GM's unibody Y‑body platform. All Corvettes used front mid-engine configuration for seven generations, through 2019, and transitioned to
12792-597: The vehicle a 0–60 mph (0–97 km/h) time of under 4.2 seconds. Its top speed was 190 mph (310 km/h). The C6 shared some components with the Cadillac XLR hard-top convertible introduced two years earlier in 2003. The C6 generation did not match the previous generation's relatively good fuel economy , despite its relatively low 0.28 drag coefficient and low curb weight, achieving 16/26 mpg (city/highway) equipped with automatic or manual transmissions; like all manual transmission Corvettes since 1989, it
12915-433: The vehicle, the body is still placed on or over (sometimes straddling) this structure from above. This is the design used for the full-size American models of General Motors in the late 1950s and early 1960s in which the rails from alongside the engine seemed to cross in the passenger compartment, each continuing to the opposite end of the crossmember at the extreme rear of the vehicle. It was specifically chosen to decrease
13038-533: The vertical side of a frame. The taller the frame, the better it can resist vertical flex when force is applied to the top of the frame. This is the reason semi-trucks have taller frame rails than other vehicles instead of just being thicker. As looks, ride quality, and handling became more important to consumers, new shapes were incorporated into frames. The most visible of these are arches and kick-ups. Instead of running straight over both axles , arched frames sit lower—roughly level with their axles—and curve up over
13161-421: Was a four-cam (DOHC) design producing 375 hp (280 kW). The C4 ZR1 ran from 1990 thru 1995 model years. In 1991, all Corvettes received updates to the body, interior, and wheels. The convex rear fascia that set the 1990 ZR-1 apart from the base model was included on L98 Corvettes, making the styling of the expensive ZR-1 nearly identical to that of the base cars. The most obvious difference remaining between
13284-590: Was a nod to the original Grand Sport model produced in 1963. The Grand Sport came only in Admiral Blue with a white stripe down the middle, black wheels, and two red stripes on the front left wheel arch. The C5 Corvette was redesigned from the ground up after sales from the previous generation began to decline. Production of the C5 Corvette began in 1996 but quality/manufacturing issues saw its public release delayed until 1997. C5 production continued through
13407-461: Was added in 1986 to comply with safety regulations. While the color of the pace car used in the race was yellow, all 1986 convertibles also had an Indy 500 emblem mounted on the console, making any color a "pace car edition". In 1987, the B2K twin-turbo option became available from the factory. The Callaway Corvette was a Regular Production Option (RPO B2K). The B2K option coexisted in 1990 and 1991 with
13530-464: Was added. The wheels were also updated to a new five-spoke design. The ZR1 was formally announced in a December 2007 press statement by General Motors, where it was revealed that their target of 100 hp (75 kW; 101 PS) per 1 L (61 cu in) had been reached by a new "LS9" engine with an Eaton- supercharged 6.2-liter engine producing 638 hp (476 kW; 647 PS) and 604 lb⋅ft (819 N⋅m) of torque. The LS9 engine
13653-399: Was continued thru the C2 line-up except for 1966. This feature returned for the 1967 model year and then continued until 1968, the first C3 model year. The 1967 model year had the first L88 engine option that was rated at 430 hp (321 kW; 436 PS), but unofficial estimates place the output at 560 hp (418 kW; 568 PS) or more. Only twenty such engines were installed at
13776-403: Was last offered), a manual transmission returned to the Corvette starting with production in late 1984. The transmission proved to be problematic and was replaced by a modern ZF six-speed manual transmission in 1989. In 1986, the second Corvette Indy Pace Car was released. It was the first convertible Corvette since 1975. A Center High Mounted Signal Light (CHMSL) – a third center brake light –
13899-668: Was manufactured in February 2013. In May 2013, a federal investigation of problems with more than 100,000 C6 lighting systems was announced. Development for the seventh generation Corvette started in 2007. A prime consideration was countering not just the perception but the fact that the Corvette had become an "old man's toy" - confirmed by an October 2012 GM study which showed that about 46 percent of Corvette buyers were 55 or older, compared with 22 percent of Audi R8 and 30 percent of Porsche 911 customers. The head of Chevy marketing, Chris Perry, acknowledged that too many people saw it as
14022-449: Was no longer a new idea for cars, "but it was unheard of in the [American] low-price field [and] Nash wanted a bigger share of that market." The single unit-body construction of the Nash 600 provided weight savings and Nash's Chairman and CEO, George W. Mason was convinced "that unibody was the wave of the future." Since then, more cars were redesigned to the unibody structure, which
14145-515: Was not ideal because the panel fits were poor. To convince a skeptical public of the strength of unibody, both Citroën and Chrysler created advertising films showing cars surviving after being pushed off a cliff. Opel was the second European and the first German car manufacturer to produce a car with a unibody structure – production of the compact Olympia started in 1935. A larger Kapitän went into production in 1938, although its front longitudinal beams were stamped separately and then attached to
14268-432: Was one of the last perimeter frame passenger car platforms in the United States. The fourth to seventh generation Chevrolet Corvette used a perimeter frame integrated with an internal skeleton that serves as a clamshell. In addition to a lowered roof, the perimeter frame allows lower seating positions when that is desirable, and offers better safety in the event of a side impact. However, the design lacks stiffness because
14391-475: Was removed, restored, and put on display at the National Corvette Museum in Bowling Green, Kentucky. It is still owned by GM. On February 12, 2014, it was nearly lost to a sinkhole which opened up under the museum. Eight other Corvettes were severely damaged. Regular fourth generation production began on January 3, 1983; the 1984 model year and delivery to customers began in March 1983. The 1984 model carried over
14514-418: Was smaller than the first generation. The car was designed by Larry Shinoda with major inspiration from a previous concept design called the "Q Corvette," which was created by Peter Brock and Chuck Pohlmann under the styling direction of Bill Mitchell . Earlier, Mitchell had sponsored a car known as the " Mitchell Sting Ray " in 1959 because Chevrolet no longer participated in factory racing. This vehicle had
14637-425: Was successfully adapted for the new-for-1965 Chevrolet Corvair , which solved the quirky handling problems of that unique rear-engine compact. 1967 was the final model year for the second generation. The 1967 model featured restyled fender vents, less ornamentation, and backup lamps - which were inboard in 1966 - became rectangular and centrally located. The first use of all four taillights in red started in 1961 and
14760-421: Was the Z06 competition package, which offered stiffer suspension, bigger, multi-segment lined brakes with finned drums, and more. Only a couple hundred coupes and a single convertible were factory-equipped this way in 1963. With only 771 fuel-injected cars built in 1965, Chevrolet discontinued the option at the end of the 1965 production, having introduced a less-expensive big block 396 engine rated at 425 hp in
14883-661: Was the most powerful to be put into a GM production sports car. Its top speed was 205 mph (330 km/h). The historical name Grand Sport returned to the Corvette lineup in 2010 as an entirely new model series that replaced the Z51 option. The new model was an LS3 equipped Z06 with a steel frame instead of aluminum. It retained many of the features of the Z06 including a wide body with 18x9.5 and 19x12 inch wheels, dry-sump oiling (manual transmission coupes only), 6-piston 14-inch front brakes and 4-piston rear, and improved suspension. Manual transmission-equipped G/S coupe models received
15006-400: Was the only year for a C3 to optionally offer either a factory-installed side exhaust or a normal rear exit with chrome tips. The all-aluminum big-block 427 cu in (7.00 L) ZL-1 engine was also new for 1969; the special racing engine was listed at 430 hp (321 kW; 436 PS), but was reported to produce 560 hp (418 kW; 568 PS) and accelerated a ZL-1 through
15129-508: Was trademarked by Carrozzeria Touring for lightweight sports-car body construction that only resembles a space-frame chassis. Using a three-dimensional frame that consists of a cage of narrow tubes that, besides being under the body, run up the fenders and over the radiator, cowl, and roof, and under the rear window, it resembles a geodesic structure . A skin is attached to the outside of the frame, often made of aluminum. This body construction is, however, not stress-bearing and still requires
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