Car Classification

Classifications: Entries into the Knox Mountain Hilllimb should conform to one of the following car classifications. If entering, please classify your vehicle into one of the following classes and note on your entry form.

STREET PREPARED:

Cars eligible for Stock, SS, or SP classes as per the CACC Time Attack regulations.
Note: Race tires are not permitted in any Street Prepared class. All tires must be DOT approved.

Turbocharged and Supercharged engines are classified according to their actual displacement multiplied by 1.7

SP-1 - Street sedans and sports cars under 1800 cc.
SP-2 - Street sedans and sports cars 1800 - 2500 cc
SP-3 - Street sedans and sports cars 2501 - 4000 cc
SP-4 - Street sedans and sports cars 4001 cc and over.

SPX-1
SPX-2
SPX-3

GT CARS:

Cars conforming to current CACC/SCCA GT classifications and legal to race in the appropriate group below.

GT-1
GT-2
GT-3
GT-Lite

Cars prepared beyond GT, IP or CACC Time Attack classes (ie. engine swaps, over-lightening, etc.).
Turbocharged and Supercharged engines are classified according to their actual displacement multiplied by 1.7

GT-U - Under 1800 CC.
GT-X - 1800-2500 CC.
GT-M - 2501-4000 CC.
GT-0 - Over 4001 CC.

FORMULA AND SPORTS RACING CARS:

Cars must conform to current race regulations for respective classes. Cars not conforming to current open wheel regulations will be bumped to Formula Libre class.

FV - FV, F440. F4, and VW powered dune buggies.
FF - FF1600, FF2000, FC.
SR - Sports Racer.
FA - FA, FB, FSV, FSOOO, F Libre, Modified Open wheel.

SPECIALTY VEHICLES:

We reserve the right to add and/or delete classes to accommodate specially prepared vehicles at the discretion of the Knox Mountain Motor Sport organizers. Please contact the organizer for this class. Examples might be:
Electric vehicle Experimental
Vintage
Legend
4x4,etc