IMSA Prototype Challenge


IMSA Prototype Challenge presented by Mazda is a racing series featuring two classes of single-seat prototype cars racing simultaneously. The series is sanctioned by the International Motor Sports Association. Most races are held in support of the WeatherTech SportsCar Championship. The L1 class features Élan Motorsport Technologies DP02 carbon tub cars powered by a 2.0 L Mazda MZR engine. In 2013 the L2 class switched to the same Elan DP02 tub of the L1, but fitted with the car's previous generation 2.3 L Mazda engine. Each class has an overall championship, a master’s championship for drivers at least 40 years of age, and a team championship. Each race is usually 30–45 minutes.

Car Specifications

LMP3 Class

Former classes

MPC Class
L2 Class
L2 Class 2006-2012 only
L3 Class 2006-2009 only, class discontinued for 2010