Car Classing

IMG uses a car classing system known as the Performance Index, which matches cars of similar capabilities and lap times together for close, competitive racing. If your car is already built for an existing racing or time trial class, use the class equivalency table below to quickly and easily identify your IMG performance index.

Custom Car Classification

Please fill out the form below as completely and accurately as possible. We will consider all of the details listed here and calculate your class based on what you input.

Contact Information

Your Name*
Email Address*	Please enter a valid Email Address
Phone Number*

Base Vehicle Information

Make*		Model*
Year		Trim

Does your car fit into an existing racing or time trial class with another organization?
No Yes	If so, which organization and class?

Wheel and Tire Information

Tire Type	Street Tires or DOT Approved R-Compounds Racing slicks (non-DOT approved)
Tire Size	/   /
	(e.g.: 225/50/15)

Engine

Displacement (in liters)	L
# of Cylinders / Rotors	2 Cylinder 3 Cylinder 4 Cylinder 6 Cylinder 8 Cylinder 10 Cylinder 12 Cylinder Rotary (2 rotor) Rotary (3 rotor) Rotary (4 rotor) Other Not Sure
Compression (if known)	: 1
Please list all Engine Modifications:
Has the engine been swapped from what was originally sold with this vehicle?
No, this is the original engine for this car Yes, the engine has been swapped
If so, what type of engine is in the car now?

Drivetrain

Please list all Modifications to the transmission, differentials, axles, and drivetrain:

Suspension & Brakes

Please list all Suspension and Brake System Modifications:

Chassis and Aerodynamics

Please list all Chassis Modifications, including wings and aerodynamic mods:

Questions?

If you have any questions about classing your car, feel free to email us at info@imgracing.com.