2025 GT4 Australia Series
The 2025 GT4 Australia Series (commercially titled 2025 Monochrome GT4 Australia Series) is an Australian motorsport competition for GT4 cars. The championship is the 2nd season of a standalone GT4 Australia series having split from the Australian Production Car Series at the end of 2023, and is the second season of the championship being solely managed by the SRO Motorsports Group. The season began on 4 April at Phillip Island Grand Prix Circuit and will end on 2 November at the Hampton Downs Motorsport Park.