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CART Champ Car
TOP SPEED Approx. 240 mph
HORSEPOWER Approx. 750
FUEL Methanol
TRACTION CONTROL Not Allowed
Engine: Turbocharged, 2.65-liter (161.703 cubic inch) V-8
Gearbox: Manual with six or seven forward gears
Tires: Ungrooved racing "slicks" manufactured by Bridgestone.
Front: 10 inches max. width; Rear: 14 inches max. width
Wheelbase: Between 124 and 128 inches
Min. Weights: 1,565 pounds (1,540 pounds at super speedway events) including coolant and lubricant, without driver
Max. Height: 32 inches, excluding the roll-over hoop and rear wings for short ovals/road courses
Max. Width: 78.5 inches
Formula One Car
TOP SPEED Approx. 225 mph
HORSEPOWER Approx. 830
FUEL Unleaded racing gasoline
TRACTION CONTROL Allowed
Engine: Normally-aspirated, 3-liter (183 cubic inches) V10 Turbochargers are forbidden
Gearbox: Semi-automatic with six to seven forward gears
Tires: Grooved racing "slicks". Front: 13.98 inches max. width; Rear: 14.97 inches max. width
Wheelbase: Between 120 and 130 inches
Min. Weights: 1322.77 lbs with driver
Max. Height: 37.43 inches
Max. Width: 70.87 inches
NASCAR Stock Car
TOP SPEED Approx. 200 mph
HORSEPOWER Approx. 700
FUEL Racing Gasoline
TRACTION CONTROL Not Allowed
Engine: Normally-Aspirated, 358 cubic inches V-8
Gearbox: Manual
Tires: Ungrooved Racing "slicks"
Wheelbase: 110 inches
Min. Weights: 3400 lbs. without driver
Max. Height: 51 inches
Max. Width: 79 inches
IRL Car
TOP SPEED Approx. 230 mph
HORSEPOWER Approx. 650
FUEL Methanol
TRACTION CONTROL Not Allowed
Engine: 3.5-liter V8, 32-valve dual-overhead cam (DOHC), Normally aspirated
Gearbox: XTRAC gearbox (standard), six forward gears, sequential shifter
Tires: Bridgestone/Firestone
Wheelbase: 110 inches minimum (hub to hub)
Min. Weights: 1,550 pounds minimum, including all lubricants and coolants used during the event, but does not include fuel or driver
Max. Height: Approximately 38 inches
Max. Width: 78.5 inches (outside wheel rims) maximum, 74 inches minimum (measured at the hub centerline