Numerous prototypes for the Mercedes-AMG GT R were flung around the Nürburgring as part of the car’s development program—and it appears all that hard testing has paid off.

The car is shockingly fast, as evidenced by this video from the good folks at Sport Auto. Test driver Christian Gebhardt took the GT R around the Nürburgring in 7:10.92, which makes it the fastest rear-wheel-drive production model around the notorious race track.

The GT R’s closest rival, the Porsche 911 GT3 RS, now seems downright pedestrian with its 7:20 time. The only cars faster are the Porsche 918 Spyder (6:57), Lamborghini Aventador SuperVeloce (6:59.73) and Nissan GT-R (7:08.68). Of course, those faster cars benefit from the extra traction of all-wheel drive.

2018 Mercedes-AMG GT R

2018 Mercedes-AMG GT R

Fitted to the GT R during its epic run were the stock Michelin Pilot Sport Cup 2 tires, and as you'll in the video they provide plenty of grip throughout—even as the car hits 302 kmh (187.6 mph) down the straight.

If you’d like to sample the GT R yourself, the car is due in showrooms in the summer of 2017. It arrives as a 2018 model.

It features the same drivetrain as the rest of AMG’s GT sports car lineup but its peak output has been dialed up to 577 horsepower and 516 pound-feet of torque. New suspension plus a much wider track has also been installed and there’s no missing all the added aerodynamic elements. Another key mod is the four-wheel-steering system. Simply incredible.