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Category | Sports car racing |
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Country | United States, Canada |
Inaugural season | 2006 |
Classes | LMP3 |
Drivers' champion | ![]() ![]() |
Teams' champion | K2R Motorsports LLC |
Official website | IMSA Official Site |
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IMSA Prototype Challenge (formerly IMSA Prototype Lites) is a racing series featuring two classes of single-seat prototype cars racing simultaneously. The series is sanctioned by the International Motor Sports Association (IMSA). Most races are held in support of the WeatherTech SportsCar Championship.[1]The series races 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 is 1 hour and 45 minutes long apart from the season opening 3 hour race at Daytona International Speedway.
Minimum weight | 930 kilograms (2,050 lb) |
Maximum length | 4,650 millimetres (183 in) |
Maximum width | 1,900 millimetres (75 in) |
Engine | Naturally aspirated Nissan V8 5.6L |
Fuel tank size | 85 litres (22 US gal) |
Maximum wheel diameter | 28 inches (710 mm) |
Maximum wheel width | 13 inches (330 mm) [2] |
MPC Class
L2 Class[4]
L2 Class 2006-2012 only[5]
L3 Class 2006-2009 only, class discontinued for 2010[6]
Season | Class | Driver Champion | Masters Champion | Team Champion |
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2006 | L1 | ![]() |
n/a | ![]() |
L2 | ![]() |
n/a | PVM Racing | |
L3 | ![]() |
n/a | n/a | |
2007 | L1 | ![]() |
n/a | ![]() |
L2 | ![]() |
n/a | PVM Racing | |
L3 | ![]() |
n/a | ![]() | |
2008 | L1 | ![]() |
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L2 | ![]() |
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L3 | ![]() |
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KC Racing | |
2009 | L1 | ![]() |
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L2 | ![]() |
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L3 | ![]() |
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Surface Exploration | |
2010 | L1 | ![]() |
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L2 | ![]() |
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2011 | L1 | ![]() |
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L2 | ![]() |
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2012 | L1 | ![]() |
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L2 | ![]() |
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2013 | L1 | ![]() |
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L2 | ![]() |
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2014 | L1 | ![]() |
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L2 | ![]() |
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2015 | L1 | ![]() |
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L2 | ![]() |
n/a | ![]() | |
2016 | L1 | ![]() |
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2017 | LMP3 | ![]() |
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MPC | ![]() |
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2018 | LMP3 | ![]() |
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MPC | ![]() |
n/a | ![]() | |
2019 | LMP3 | ![]() ![]() |
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2020 | LMP3 | ![]() ![]() |
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2021 | LMP3-1 | ![]() ![]() |
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LMP3-2 | ![]() ![]() |
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[8] |