The 2019 Chevrolet Corvette ZR1 is a lot of things for the automaker, but it also happens to be the fastest and most powerful sports car ever made by the brand.

Chevrolet claims the supercar cranks out 755 horsepower (563 kW) and 715 pound-feet of torque (968 nm). RaceProvenMotorsports got their hands on a Corvette ZR1 and put it to the test on a dyno.

The Corvette ZR1 is reportedly VIN #4 and comes courtesy of StreetSpeed717, who claims to have the first manually-equipped 2019 ZR1 in the country. While we’re not sure if that’s true, we can see what kind real figures the supercar puts down.

Before getting into the figures, it’s important to make a note of what kind of power a dyno measures. Automakers usually give figures for vehicles that are measured at the crankshaft, while dynos provide figures that are measured at the wheels. While that would seem like a straightforward difference, you have to take driveline losses into account.

A rule of thumb that everyone usually goes off by is to deduct 15 percent from a vehicle’s crankshaft rating to get its wheel rating. With that in mind, the ZR1 should put out around 641 hp on the dyno. Instead, as the video below reveals, the supercar actually cranks out 668 hp (498 kw) and 644 lb-ft of torque (873 nm).

After some quick math, that means the new ZR1 only suffers from a 12 percent drivetrain loss instead of the standard 15 percent. And, the dyno technician in the video states that the car could put down a little more power with a simple tune.

It’s also important to note that the car only has approximately 200 miles on it. Usually, you have to wait until a car has 500 miles to start pushing it to its limit. So the car might make a little more power when it covers some more miles. Either way, the dyno run is still worth a watch and the sound of the supercharged V8 engine is intoxicating.