The G&H Transport Extreme Supercars is a national challenge series conceived and promoted by Zwartkops Raceway. The series provides a home for GT cars and high-performance saloon cars to compete at Extreme Festival events throughout South Africa. Currently the series uses time-based classes but, in the longer term, the aim is to have time-based and power-to-weight homologated classes competing for the overall championship.

The main objectives of the series are:

  • To provide racing that is rewarding for competitors and sponsors, and exciting for spectators
  • To showcase modern cars and recognizable brands
  • To declare an overall champion and winners in each class as well as an overall GT3 winner.

A copy of the 2019 rules can be found here.