The Holden ZB Commodore was homologated, making it eligible to compete in the championship. All existing Holden teams commenced the season with the new car, either new chassis or reskinned VF Commodores. Triple Eight Race Engineering, who oversaw the development and homologation of the ZB chassis were also developing a V6 twin-turbocharged engine for Holden cars ahead of a full introduction in 2019. However, the programme was put on indefinite hold in April 2018. Triple Eight team were proposing to debut the V6 powerplant with a number of wildcard entries, however the discontinuation of the project resulted in this being scrapped.
