The event features the thrilling, wheel-to-wheel action of the USAC NOS Energy Drink National Midget Championship. Read More>
The special events will take place in April in Indianapolis, Bloomington, Evansville and Fort Wayne. Read More>
Season One of the popular docuseries looked at the buildup to the 107th Indianapolis 500 presented by Gainbridge last spring. Read More>
Josef Newgarden unveils the 2024 Indianapolis 500 Ticket View Photos>
Remembering the life and career of Gil de Ferran. View Photos>
Photos from Sunday at Indianapolis Motor Speedway for the 2023 Indy 8 Hour. View Photos>
On this episode of Doug and Drivers, IMS President Doug Boles sits down with four-time Indy 500 winner Helio Castroneves. The modern legend discusses his historic Drive for Five, his transition to an ownership role within Meyer Shank Racing, the loss of his dear friend Gil de Ferran, and more. Watch Video>
On this episode of Behind the Bricks, IMS President Doug Boles heads all the way to Arvada, Colorado, on the outskirts of Denver for a fan party at the Sonsio headquarters. To celebrate their new role as the title sponsor of the Grand Prix, Sonsio unveiled Scott McLaughlin's Sonsio car and hosted nearly 200 Denver-area Indy 500 fans! Watch Video>
On this episode of Doug and Drivers, IMS President J. Douglas Boles sits down with Graham Rahal to discuss his growing businesses off-track, as well as the gut wrenching memories of failing to qualify for the Indy 500 last year. Watch Video>
June 21, 2012 | By GRAND-AM MEDIA
The GT, or Grand Touring, class has long been a staple of sports car racing, both in national and international competition. The cars are historically those production-based cars built from the street and modified for the race track, though some cars in international series have been built as specificbased race cars with production-lookalike bodies. GRAND-AM has employed a two-class system for the Rolex Series since 2005, running Daytona Prototypes and GT cars. Currently, the Rolex Sports Car Series GT class sports some of the top models of sports cars in the world, with competitors adhering to GRAND-AM’s level-playing field. Among those cars eligible for competition in the Rolex Series GT class are the Audi R8 GRAND-AM, BMW M3 and M6, Chevrolet Camaro GT.R, Chevrolet Corvette, Ferrari 458 Italia Grand Am and 430C, Ford Mustang, Infiniti G Sedan, Jaguar XK8, Lamborghini Gallardo, Mazda RX-8, Mercedes-Benz SLS, Nissan 350Z and Porsche GT3. GT cars competing in the Rolex Series can be unibodied production cars (Prep 1) or custom tube frame chassis (Prep 2). The rules for GT employ several methods of equalization, including race car weight, tire size and engine RPM limits to provide an even playing field for the variety of different cars. Engines in GT machines produce between 390 and 450 horsepower depending on the car. The GRAND-AM Rolex Sports Car Series ran multiple GT classes from 2000-2004, including GTU, GTO, AGT, GTS and SGS.