GT1: Any purpose built tube-frame (or semi-tube frame) race cars or highly modified OEM production Sedans having an engine displacement of 2.5L (and larger). Race car must include standard safety items as well as a fuel cell, fire suppression system and a more extensive roll cage. Slick tires are allowed.

GT2: Any purpose built tube-frame (or semi-tube frame) race cars or highly modified OEM production Sedans having an engine displacement of 2.49L (and lower). Race car must include standard safety items as well as a fuel cell, fire suppression system and a more extensive roll cage. Slick tires are allowed.

GT3: Overbuilt OEM Production Sedans with a stock unibody. Engine swaps, lexan windows and various other modifications are allowed. Race car must include standard safety items. Although fuel cell & fire suppression system are not required, they are recommended. Slick tires are allowed. All SCCA ITR, ITS, ITE legal cars are in this class.

GT4: Production based Sedans that include minimal modifications as indicated in the SCCA ITA Class. Race car must include standard safety items (fire extinguisher, 6-pt roll cage, master electrical shut off, etc.).

GT5: Production based Sedans that include minimal modifications as indicated in the SCCA ITB Class. Cars in GT5 class have slightly less performance potential than those in GT4. Race car must include standard safety items.

GT6: Production based Sedans that include minimal modifications as indicated in the SCCA ITC Class and/or any entry level racecar. Cars in GT6 class generally have slightly less performance potential than those in GT5 class. Race car must include standard safety items.

Open Wheel: Open Wheel classes are split into Formula Ford 1600 (FF), which includes all Ford 1600 powered open wheel cars (with limited engine modification), and Formula Libre (FL) which is a catch-all class for other open wheel cars 2.0L of displacement and under, and those with extensive modification.

Legends: Legends cars are small tube-frame chassis built to look like 1930’s-style cars, with a 1200cc Yamaha motorcycle engine. Locally, Legends cars are commonly raced at oval tracks, but they are quite successful on road circuits worldwide. Legends cars are governed by an international set of rules that standardizes the cars and allowed modifications.

In January 2009, a new set of rules for Grand Touring cars was adopted by the TRAC Road-Racing Series. This document outlines the rules for competition, car preparation, safety and more.

To download the new rule book, CLICK HERE.