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30-620: Designed by race car designer Mike Pilbeam , the SR3 is considered Radical's most successful model with over 1,100 units sold. The vehicle was originally developed for participation in international competitions in the C3 class of the FIA . In 2009, a further developed version of the Radical SR3 was presented. For the variant called Radical SR3 SL ( for "Street Legal" ), street legal for small series vehicles

60-694: A 12-volt socket. 6. ^ " https://www.carfolio.com/radical-sr3-117733 " Retrieved 19-11-2022 Mike Pilbeam Michael Roy Pilbeam (born March 1937) is a British motorsport designer and engineer known for his work with BRM , Lotus , Surtees and his own company, Pilbeam Racing Designs . An early design was the experimental four wheel drive Formula One BRM P67 of 1964. As of 2014 , Pilbeam's company continued to produce hillclimb cars and sports prototype chassis for endurance racing. Pilbeam spent much of his early life in West London, and had little interest in competition cars until he attended

90-506: A championship winning machine. After the abandonment of the P67 project, Pilbeam worked on the BRM H16 engine , helping to develop it to the point where Jim Clark was able to win the 1966 United States Grand Prix with a Lotus 43 -BRM. Pilbeam moved to Ford at Dunton , Essex in 1966, where he worked in the advanced chassis department. He moved to Lotus in 1969, where he worked on

120-454: A non-Championship race at Brands Hatch . Unfortunately for BRM and Tony Southgate his 1972 design, the BRM P180 , was not as competitive as the previous model. Siffert's replacement Jean-Pierre Beltoise managed to win a rain-hit Monaco Grand Prix in the older P160, and with it take BRM's final Formula One victory. During the 1972 season BRM and Tony Southgate parted company. BRM finished

150-529: A race. Southgate also designed the Arrows A2 and A3 , before leaving the team to work as a freelance engineering consultant. Southgate returned to Formula 1 towards the end of 1980 to design Theodore Racing 's TY01 to race in the 1981 season. When Theodore was merged into Ensign at the end of 1982, Southgate and John Thompson founded a design consultancy named Auto Racing Technology , that worked for Ford on two major projects, including development of

180-536: A renaissance with the P153 and its successor the BRM P160 . The P160, in particular, was highly competitive during the 1971 season; drivers Pedro Rodríguez and Jo Siffert often ran near the front of the field, only for poor reliability to let them down before the finish. Continued development work reaped vast improvements. In the latter half of the season Siffert and Peter Gethin (who had replaced Rodríguez following

210-525: Is also available. In Autumn 2014, Radical presented a revised version of the racing version with the SR3 RSX. The SR3 is extremely lightweight with a trellis chassis and weighs less than 600 kg (1,300 lb). The aerodynamic downforce allows cornering acceleration of up to 2 g at high speed. A roof or trunk is not available for the car. The racing bucket seats help to save weight. The SR3 can be ordered as left-hand or right-hand drive. The engine from

240-594: Is the only chief engineer to have won the Triple Crown of Motorsport with his cars: Indianapolis 500 with Eagle TG2 in 1968, the Monaco Grand Prix with the BRM P160B and the 24 Hours of Le Mans in 1988 and 1990 with Jaguar XJR-9 and Jaguar XJR-12 . Tony Southgate became interested in motorsport during his engineering apprenticeship and, like many aspiring racing designers in the late 1950s,

270-400: The 1958 British Grand Prix , whilst at Bristol University . In 1959, he constructed a small sportscar with which he competed himself, but without much success. However a later design and an association with club racer Tony Gould brought some success in the 1,172 cc (71.5 cu in) class. In 1963, he joined BRM as a stress engineer. He assisted in the construction and design of

300-544: The BRM P201 for 1974 , which was still competing as late as the 1977 Formula One season . Pilbeam left BRM in late 1974, after Louis Stanley took control of the company, and in 1975 established Pilbeam Racing Designs , initially working from home. His first design was a Formula Atlantic chassis for Tom Wheatcroft which was also adapted to Formula Two , where it was driven by Brian Henton . Subsequently, Pilbeam began constructing hillclimb cars. Pilbeam cars won

330-939: The BRM P301 sportscar in the mid-1990s before subsequently producing their own chassis to compete in the Le Mans 24 hour race and in the World Endurance Championship in the LMP2 class, between 2001 and 2007 and in 2014, produced the MP100 intended as a customer car for LMP2 and the Le Mans race itself. Tony Southgate Tony Southgate (born 25 May 1940, Coventry , England ) is an English engineer and former racing car designer. He designed many successful cars, including Jaguar's Le Mans -winning XJR-9 , and cars for almost every type of circuit racing. He

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360-682: The British Hill Climb Championship 17 times between 1977 and 1997. Pilbeam was also involved in the design of the Penske PC3 , as well as engineering the RAM Racing Brabham BT44s in 1976. He also designed the LEC CRP1 F1 car for David Purley , which competed in the 1977 Formula One season . In this machine, during practice for the 1977 British Grand Prix at Silverstone , Purley

390-639: The Ford RS200 . In 1983 Southgate designed his last Formula 1 car, the Osella FA1E. The design was severely constrained as Osella Squadra Corse did not have sufficient finances to build an entirely new chassis, forcing Southgate to adapt some parts (gearbox and rear suspension) of the Alfa Romeo 182 of previous year to fit an engine from Alfa Romeo . After the experience on Can-Am cars with Shadow, Southgate collaborated with Ford in 1982–83. with

420-565: The Lotus 77 and Lotus 78 until the middle of 1977. After Lotus, Southgate returned to Shadow, but left the team again at the end of 1977 together with Franco Ambrosio , Alan Rees , Jackie Oliver and Dave Wass to form Arrows . Arrows' first car, the FA1 , was almost identical to the Shadow DN9 , which Southgate had designed while at Shadow. The FA1 was comfortably leading its second race,

450-449: The P67 whilst still an apprentice and the actual design is usually credited to Tony Rudd . The car, driven by Richard Attwood , was entered for the 1964 British Grand Prix at Brands Hatch but was withdrawn after practice. It did not make any further appearances until 1968, when it appeared in hillclimb events, initially driven by Peter Westbury and subsequently by Peter Lawson and was

480-892: The Shadow DN1 , in his own garage in Lincolnshire , where he had moved to be closer to the BRM factory in Bourne . However, production was soon shifted to the US, to where Southgate once again relocated. Drivers George Follmer and Jackie Oliver were immediately competitive in the DN1. In 1974 the Southgate-designed Shadow DN4 earned first and second in the CanAm championship. In the same year Peter Revson died while testing

510-568: The Shadow DN3 at Kyalami . Tony Southgate designed the Shadow DN5 for the 1975 Formula One season. The car proved very fast, with Jean-Pierre Jarier and Tom Pryce both winning pole positions during the year, however it had poor reliability, often retiring when in a points scoring position. At the end of 1975 the withdrawal of Shadow's main sponsor UOP prompted Southgate to move to Lotus , where he worked alongside Peter Wright on

540-539: The South African Grand Prix , at the hands of Riccardo Patrese , when its engine blew, forcing it to retire. The Shadow team successfully sued Arrows for infringement of its copyrights and the Arrows FA1 was declared illegal in a UK court judgement on 31 July. Southgate had anticipated this and had completed an alternative design dubbed Arrows A1 which was swiftly produced without Arrows missing

570-649: The Suzuki Hayabusa 1300 is used in the SR3 RS 1300, SR3 RS 1500 Turbo and SR3 RSX. The 2.0 L I4 Ford EcoBoost engine from the Focus ST powers the SR3 SL. The SR3 delivers 243 hp (181 kW). An increase in output to 304 hp (227 kW) is possible in the "Race Pack" for an additional charge. Since a heater is required to be street legal, it is installed in the SR3 SL. It also has footwell lighting and

600-599: The 5.0 litre Lola T70 sports car. He also assisted with designs for IndyCar chassis, one of which evolved into the Honda RA300 Hondola Formula One race-winner. It was his experience with single-seater and IndyCar designs which prompted Dan Gurney to hire Southgate for his All American Racers team, based in California , to design some of the second generation of Gurney-Eagle USAC racers. The highlight of Southgate's time with AAR

630-608: The British Hillclimb Championship in 1977 and in 1979, Pilbeam designed the MP40, which was a hillclimb car to European Formula Two specification. This machine won British Hillclimb titles in 1979 and from 1981 to 1984, powered by a Brian Hart engine. Pilbeam moved into his own premises, in a former part of BRM's operation at Bourne, Lincolnshire in 1981 and produced uncompetitive designs for Formula Ford 2000 and Formula Three in 1982 and 1983, although

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660-464: The four-wheel-drive Lotus 63 , alongside Maurice Philippe , and also on the Lotus 49B and 72 models. Pilbeam left Lotus in 1972, moving to Surtees where he worked on the Surtees TS9 , but in 1973 returned to BRM. Chief designer Tony Southgate had left BRM towards the end of the 1972 season and Pilbeam accepted a job as manager of the design office. This gave him the chance to design

690-636: The goal to improve the C100 . Helped by John Thompson, realized the MkII version that raced in last races of 1982, then realized the new Mk III, but in March 1983, Ford cancelled its activity in sports cars, after the first tests made at Paul Ricard Circuit . After the work on Ford RS200 , in 1984 Southgate moved to Tom Walkinshaw Racing , where he headed the design of the Jaguar XJR-9 and XJR-12 . These won

720-413: The hillclimb designs continued to be successful. In 1997 new premises at Bourne were opened by Bette Hill, (widow of Graham ), and Pilbeam continued to work within the industry on both road and racing car projects on a freelance basis. Pilbeam's own designs continued to be produced in small numbers to order and when his freelance work allowed. Pilbeam Racing Designs was involved in the development of

750-522: The latter's death) won back-to-back victories in the Austrian and Italian Grands Prix. Gethin's victory at Monza was taken at an average speed of over 150 mph (240 km/h) and stood as the fastest ever Grand Prix win for over 30 years. Although the BRM team finished second in the Constructors' Championship standings the end of the season, the achievement was marred by Siffert's death in

780-480: The season in seventh place. At the end of 1972 Shadow Racing Cars founder Don Nichols approached Southgate to design a Formula One car for his team to enter in the 1973 World Championship. Shadow had already been involved in the CanAm sportscar series for nearly two years, and with UOP sponsorship Nichols was planning an entrance into Formula One. Southgate designed and built the first Shadow Formula One prototype,

810-492: Was a member of the 750 Motor Club . The 750MC was a training ground for Colin Chapman , Eric Broadley , Brian Hart and others who achieved success in motorsport. In 1962 Broadley gave Southgate his first job, as a draughtsman for Lola Cars . Southgate gained a broad grounding in many areas of motorsport design while at Lola. He was involved in projects as wide-ranging as the lithe, 1.5 litre Lola Mk4A Formula One car and

840-510: Was involved in one of the heaviest impacts where a driver has survived. Pilbeam has a reputation for the structural integrity of his designs and it has been considered that this was crucial to the driver's survival. Other freelance work continued, but the F2 MP42 ground effect car commissioned by Mike Earle in 1979 was not successful, although hillclimb success kept the company in good order. A Pilbeam-modified Brabham BT38 - Cosworth won

870-581: Was responsible for the chassis design of Ford's RS200 Group B rally car. Southgate was employed as chief designer or technical director for many Formula One teams for over twenty years. These teams included BRM , Shadow and Arrows . Southgate retired after producing the Audi R8C , which was a major influence in the Bentley Speed 8 , which won Le Mans in 2003. He continues to be a regular visitor to current and historic race meetings. Southgate

900-637: Was when Bobby Unser won the 1968 Indianapolis 500 race in one of Southgate's Eagle cars. The Southgate-designed Eagle Formula 5000 car also found some success. In 1969 Tony Southgate moved back to the UK and took a job as Chief Designer for the BRM Formula One team. Southgate's first BRM car, the BRM P153 , appeared in time for the first race of the 1970 season in South Africa . BRM enjoyed

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