Grand-Am Cup Street Stock Series
The Grand-Am Cup Series is the premier proving ground for many of today's automotive manufacturers. The series features some of the best production car drivers from around the world.

The series typically complements the Rolex Sports Car Series by using race cars that are actual production cars. Grand-Am Cup cars are straight off the showroom floor with only minimal racing modifications to enhance safety and performance.

Two classes of race cars compete on the track at the same time during Grand-Am Cup events, with drivers competing for top honors in their specified class, as well as the overall win. Grand-Am Cup cars are classified by weight, engine size and model.

GRAND SPORT (GS)
The Grand Sport class includes popular sports and muscle cars, such as the BMW M3, Ford Mustang, Pontiac Firebird and GTO, Porsche 996 and Nissan 350Z.

SPORT TOURING (ST)
The Sport Touring class includes various small-to-mid-size, four door sedans and sports coupes, including the BMW Z4 and 328, Lexus IS300, Acura RSX, Mazda RX-8, Mini Cooper and Porsche Boxster.

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