How does the Mercedes-AMG GT R Pro compare with the Corvette ZR1?
The 2019 Chevrolet Corvette ZR1 completed a lap of the Nurburgring Nordschleife in 7 minutes 4 seconds. But so has the 2020 Mercedes-AMG GT R Pro, albeit with much less horsepower and torque. With a weight distribution of 47% to the front wheels, the GT R Pro has a rear-wheel weight distribution advantage over the ZR1 by 3%. Not to mention it weighs 25 kg less than its 'regular' R sibling, which means the R Pro weighs 1605 kg for North American models and 1530 kg for European models. The ZR1, on the other hand, weighs 1615 kg.
Weight and weight distribution are not the only factors here. The Corvette's transmission shifts in an estimated 80 milliseconds (based on gear ratios), while the GT's transmission should shift in the same 60 milliseconds as its father, the SLS AMG. There will be a more serious sibling of the GT R Pro known as the GT R Black Series, but is the GT R Pro faster than the ZR1?
I start the cars with mechanical efficiency ratings and static friction ratings set to 1, as well as the rolling resistance friction set to 0.01. Both cars complete the quarter-mile sprint just before hitting 140 mph. I then set the static friction to 1.5 and re-tried the car simulation runs. The GT R Pro has a mechanical efficiency rating of 0.8, whilst the ZR1 has a mechanical efficiency rating of 0.68.
The AMG GT R Pro completes the quarter-mile in 10.76 seconds at 131.37 mph, with a 0-60 mph time of 2.79 seconds and a top speed of 195.8 mph. The Corvette ZR1, when equipped with its automatic transmission option, completes the quarter-mile in 10.88 seconds at 132.23 mph, with a 0-60 mph time of 3.02 seconds and a top speed of 207 mph. Which means both cars are estimated to be slightly off from their official top speeds of 198 mph and 212 mph, respectively, but not too far off. A 195-mph car is still fast, especially for an extremely track-focused sports car like the GT R Pro.
Both cars have a drag coefficient rating of around 0.37 Cd with frontal area ratings around (if not exactly) 1 square foot apart.