The Open 4WD category allows several types of car to compete in the RallyX championship.

Supercars/RX1s complying with current regulations (with the exception of direct-injection engines and front-mounted cooling systems) are allowed to compete in the PRO and PRO AM classes.

Older-generation supercars are also accepted.

Other authorized vehicles

  • FC2 (tubular chassis and turbo engine) PRO + PRO AM
  • Projekt E/ERX (RX1/Supercar powered by electric powertrain) PRO + PRO AM
  • ZEROID X1 (tubular chassis with electric powertrain) PRO + PRO AM
  • T3F (tubular chassis powered by an atmospheric engine not exceeding 3500cc) PRO AM exclusively