GRIP Autocross Rules

Welcome to GRIP Autocross! To ensure a fair, competitive, and enjoyable experience for all participants, please adhere to the following rules and regulations. Our competition is divided into several classes based on vehicle specifications and driver experience. Below, you’ll find detailed information on vehicle eligibility, class requirements, and competition guidelines.

General Vehicle Requirements

  • Production-Based Vehicles: All competing vehicles must be derived from a production model. This includes cars and trucks, whether they are kit cars or have a fiberglass/carbon fiber body resembling a production model. Vehicles not conforming to traditional production models may compete in the Exhibition Class.

  • Tire Regulations: All tires must have a treadwear rating of 200 or more. Vehicles equipped with tires rated below 200 treadwear are only eligible for the Exhibition Class and are ineligible for trophies, awards, or prizes. This rule applies across all brands of tires.

  • Front Tire Width Classification: The width of the front tires determines the competition class (excluding the Truck and Exhibition classes). Vehicles with a front tire width of 255mm or narrower enter the Small Tire Class, while those with front tires¬† 265mm or wider enter the Big Tire Class.

Competition Classes

Big Tire Class (B)

  • Eligibility: Vehicles with a front tire width of 265mm or wider and a minimum weight of 2800 pounds (including driver).
  • Class Identifier: Vehicles in this class are designated with a ‘B’ prefix, followed by a competition number (e.g., B999).

Small Tire Class (S)

  • Eligibility: Vehicles with a front tire width of 255mm or narrower and a minimum weight of 1800 pounds (including driver).
  • Class Identifier: Vehicles in this class are designated with an ‘S’ prefix, followed by a competition number (e.g., S95).

Truck Class (T)

Eligibility:

  • Trucks of any tire size, with the stipulation that the truck’s width must exceed its height.
  • A minimum weight of 2800 pounds (including the driver) is required.

Class Identifier:

  • Trucks in this class are designated with a ‘T’ prefix, followed by a competition number (e.g., T130).

Ladies Class (L)

  • Eligibility: This is a supplementary class for female drivers competing within the main classes.
  • Class Identifier: Female drivers add an ‘L’ in front of their main class prefix and competition number (e.g., LS18 for Small Tire Class).

Novice Class (N)

  • Eligibility: Open to drivers in their first year of Autocross. After the first year or winning the Novice Class three times, drivers will graduate from this class.
  • Class Identifier: Novice drivers add an ‘N’ in front of their main class prefix and competition number (e.g., NB76 for Big Tire Class).

Exhibition Class

  • Eligibility: Vehicles with tires under 200 treadwear, or not meeting the weight requirements for other classes. This class is for display and demonstration purposes only.
  • Restrictions: Participants are not eligible for competition shootouts, prizes, or awards.

Additional Rules and Guidelines

  • Vehicle Inspection: Participants may be required to have their vehicle (with driver) weighed to verify class eligibility.
  • Prohibited Vehicles: Motorcycles, quads, side-by-sides (SXS), Slingshots, and go-karts are not permitted to compete.
  • Rule Amendments: The event organizers reserve the right to modify these rules at any time to enhance the competition’s fairness and integrity.

Please ensure your vehicle complies with the above regulations before registering for the event. Compliance with these rules ensures a fair and enjoyable competition for everyone involved. If you have any questions regarding these rules or your vehicle’s eligibility, please contact us.