Race 1While the skies were sunny and clear, the track surface at the Grand Prix de Trois-Rivieres told another story for the IMSA Prototype Challenge Presented by Mazda series Race 1 Saturday morning.A fairly rainy weekend and overnight thunderstorms drenched the 1.52-mile, 10-turn street circuit, forcing IMSA officials to declare...

Topeka, Kan. (Dec. 1, 2014) - In June 2012, the formation of two ad-hoc committees to develop the rules for what has become Prototype 1 and Prototype 2 was announced. At that time, the commitment was made for the duration of the committees to last no longer than two years....