Established in 2023, Monochrome GT4 Australia is one of the Australia's newest premier racing categories. Delivering entertaining racing, it features some of the world’s most iconic sports car brands, including BMW, McLaren, Mercedes-AMG, Porsche, Audi and Ginetta. The series provides a competitive platform for both up-and-coming talent and experienced racers. 

Monochrome GT4 Australia features FIA GT4-homologated race cars, ensuring a level playing field with strict performance balancing (BoP) to maintain close, competitive racing among manufacturers. The series includes three classes, Silver, Silver-Am and Am, catering to different levels of experience and skill. 

Run by SRO Motorsports Australia, the category features exclusively in the 2025 Shannons SpeedSeries, racing at some of Australia's best tracks, including Phillip Island Grand Prix Circuit, Sydney Motorsport Park, Queensland Raceway, Sandown and The Bend. The 2025 season culminates in New Zealand with the finale taking place at Hampton Downs. 

 With a growing fanbase, increasing manufacturer involvement, and serving as a stepping stone to the GT World Challenge Australia powered by AWS, the series delivers action, aspiration and accessibility to drivers and fans alike.