The Grand-Am KONI Challenge Series is a showcase for the latest in international and American-made high performance sports cars, coupes and sedans straight from the dealer showroom floor with major modifications for safety only. Like the Rolex Series, the Koni Series runs two separate classes of cars. The Grand Sport (GS) series allows exotic international cars to compete against the big engine cars of America. The smaller Street Tuner class races import and compact cars. The two classes race separately although, interestingly, they come together for two races each year.
| Series: | Grand-Am Koni Series  |
| Category: | Sports Car |
| Course Type: | Road |
| Approximate Race Length: | ~250 miles |
| Top Speed: | ~135-160 mph (2 classes) |
| Fuel: | Sunoco Race Fuels Sunoco 260GTX |
| 0-60 mph: | Know the answer? Let us know! |
| 0-100 mph: | Know the answer? Let us know! |
| Horsepower: | 170-405 (2 classes) |
| Traction Control: | Can be used if it is original to the vehicle. Aftermarket ABS and traction control systems are not permitted unless specified by the series. |
| Engine: | 16.9 - 19 gallons. GS Series: V-8; ST Series: V-4 or V-6; turbochargers and superchargers are allowed if they are original to the vehicle and meet specific regulations determined by the series.
Engine manufacturers for the ST Class are: Acura, Audi, BMW, Chevrolet (Corvette), Dodge, Honda, Hyundai, Lexus, Mazda, Mini Cooper, Nissan, Subaru and Volkswagen. Engine manufacturers for the GS Class are: BMW, Cadillac, Ford, Nissan, Pontiac and Porsche |
| Gearbox: | Manual transmissions are mandatory in both classes |
| Tires: | Hoosier |
| Wheelbase: | Street legal |
| Chassis: | Original to manufacturer |
| Brakes: | Original to manufacturer |
| Suspension: | Original to manufacturer |
| Min. Weights: | 2,900 lbs. - 3,300 lbs. (GS) |
| Max Height: | Varies by manufacturer |
| Max Width: | Varies by manufacturer |
| Geographic Scope: | United States, Canada |
| Driver Change: | Yes |
| Annual Cost Per Car: | Know the answer? Let us know! |
| Vehicle Manufacturers: | Chase Competition Engineering, Crawford Race Cars, Doran Racing, FABCAR, Multimatic, Picchio, Riley Technologies |
| Date | Series | Event | Venue | Location | Get Tickets! |
|---|---|---|---|---|---|
| 4-Jan-09 | January Test Days at Daytona | ||||
| 23-Jan-09 | Daytona International Speedway | ||||
| 15-Mar-09 | Homestead-Miami Speedway | ||||
| 2-May-09 | New Jersey Motorsports Park | ||||
| 16-May-09 | Mazda Raceway Laguna Seca | ||||
| 25-May-09 | Lime Rock Park | ||||
| 5-Jun-09 | Watkins Glen International | ||||
| 21-Jun-09 | Mid-Ohio Sports Car Course | ||||
| 19-Jul-09 | Barber Motorsports Park | ||||
| 16-Aug-09 | Grand Prix de Trois-Rivieres | ||||
| 20-Sep-09 | Miller Motorsports Park | ||||
| 4-Oct-09 | Virginia International Raceway |
