The 2025 Repco Supercars Championship will be the third season under the new Gen3 ruleset.

In 2023, the Chevrolet Camaro joined the Ford Mustang on the grid, with the Toyota GR Supra joining the Supercars heavyweights in 2026.

The new cars were designed with an eye on increased road relevance and improved racing.

The Gen3 cars are an evolution from Gen2, although the new cars will feature a greater likeness to their roadgoing counterparts.

From doors, roof, windows and bonnet, Gen3 cars will look the part.

All the while, it restores the Camaro and Mustang rivalry which headlined the early years of the Australian Touring Car Championship.

Ford

Right back to the championship's humble beginnings, iconic automotive brand turned global motorsport powerhouse Ford has an boasted a strong presence on the Supercars grid.

In 2025, Shell V-Power Racing Team, Tickford Racing, Walkinshaw Andretti United, Penrite Racing and Blanchard Racing Team will race the S650 Ford Mustang GT.

The global unveiling of the new-generation Ford Mustang in late 2022 paved the way for the Repco Supercars Championship to be the first motorsport category in the world to debut the S650 Mustang.

Chevrolet

The famed Bowtie returned to Supercars in 2023 with the introduction of the Gen3 Supercar, replacing the retired Holden brand.

In 2025, Red Bull Ampol Racing, Erebus Motorsport, Team 18, Brad Jones Racing, Matt Stone Racing and Nulon Racing will field 14 Chevrolet Camaro ZL1-1LEs.

Chevrolet's place on the Supercars grid dates back to 1966, with Norm Beechey entering a Chevrolet Chevy II Nova. From then, a fierce Chevrolet/Ford rivalry dominated Australian motorsport throughout the 1970s.