2025 Chevrolet Corvette ZR1 clocks 375km/h in official speed test: Fastest GM production car ever

The latest 2025 Chevrolet C8 Corvette ZR1 has been clocked travelling at an incredible 375.92km/h in official speed tests – 29km/h faster than originally announced.

Officially crowning it as the General Motor's fastest production car ever, the record speed was recorded in a standard Chevrolet Corvette ZR1, with some of the high-speed runs driven by GM's own president Mark Reuss behind the wheel.

The ZR1 coupe that set the record featured the standard car's twin-turbocharged 5.5-litre cross-plane V8 – dubbed LT7 – that already produces an incredible 793kW and 1123Nm of torque.

Sporting the standard chassis and aero package, with the standard spoiler and carbon-fibre pack, the high-speed runs were carried out on road-spec Michel Pilot Sport 4S tyres and the regular ZR1 wheels at Germany's Papenburg proving ground.

Using the ZR1's specially-developed Top Speed Mode, the ZR1 is said to have reached its maximum 375km/h top speed in sixth gear at the redline.

During the runs, an engineer rode shotgun to analyse live data in real-time, with GM engineers claiming that the 375.92km/h top speed was not a one-off with speeds of more than 370km/h recorded across multiple runs.

As well as the fastest-ever Corvette, GM says the Corvette is the "fastest car ever built by an American auto manufacturer", although, limited-run hypercars like the SSC Tuatara (475km/h) and the Hennessey Venom F5 (437.1km/h) both claim much-higher top speeds.

Instead, the Corvette ZR1 will have to be content with the final claim that it is the fastest production car under US$1 million ($A1.5m).

Prices for the 2025 Chevrolet Corvette ZR1 have yet to be announced but it's thought it will be priced from $150,000 (A$225,000).

Sadly, General Motors Specialty Vehicles (GMSV) has already tentatively ruled out the ZR1 for launch in Australia following its reveal back in July this year, telling carsales the new ZR1 is “not currently planned to join the line-up in Australia and New Zealand”.

However, a local spokesperson did concede that demand would be monitored and potentially reassessed going forward.

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