IMSA Prototype Challenge (formerly IMSA Prototype Lites) was a racing series featuring two classes of single-seat prototype cars racing simultaneously. The series was sanctioned by the International Motor Sports Association (IMSA). Most races were held in support of the WeatherTech SportsCar Championship . The series raced LMP3 class prototype sportscars. The cars have grown in size and speed since its 2006 introduction, starting from four-cylinder and motorcycle powered race cars to large V8 powered cars. Each race was 1 hour and 45 minutes long apart from the season opening 3 hour race at Daytona International Speedway .
2-603: The 2022 IMSA Prototype Challenge was the seventeenth and final season of the IMSA Lites series and its successors, and the sixth under the IMSA Prototype Challenge name. The season started on January 21 at Daytona International Speedway and concluded on October 1 at Michelin Raceway Road Atlanta . The provisional 2022 calendar was released on August 6, 2021 at IMSA's annual State of
4-542: The Sport Address, featuring five rounds. Championship points are awarded in each class at the finish of each event. Points are awarded based on finishing positions in the race as shown in the chart below. Bold - Pole position Italics - Fastest lap †: Post-event penalty. Car moved to back of class. †: Post-event penalty. Car moved to back of class. †: Post-event penalty. Car moved to back of class. IMSA Lites The series' final season
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