The new Audi RS7 is one of the latest high-powered four-door hailing from Ingolstadt to be enjoyed by car buyers in the United States. Underneath its undeniably sleek and aggressively-styled body, it packs quite a punch.
The twin-turbo 4.0-liter V8 that propels this monster comes with a peak output of 591 horsepower (441 kilowatts) and 590 pound-feet of torque (800 Newton-meters), sent to all four wheels via Audi's Quattro all-wheel-drive system.
Gallery: 2020 Audi RS7 Sportback
Of note, the RS7 Sportback is the most powerful Audi A7 to date.
But the RS7 isn't without a worthy adversary. Enter the Mercedes-AMG GT63 S. The four-door coupe, is also powered by a twin-turbo 4.0-liter V8 engine, coded AMG M177, making 630 hp (470 kW) and 664 lb-ft (900 Nm) of twists – sent also to all four wheels but with a bias to the rear.
With these numbers laid out, it's obvious that the Audi RS7 Sportback matches the AMG GT 63 S squarely – although the one from Stuttgart has a bit of an advantage. It's important to take note, however, that the Mercedes is a bit heavier than the Audi, with the latter having a 121-pound (55-kilogram) weight advantage.
The Mercedes is pricier than the Audi, too. Quite a lot pricier, to be honest, but you all should know that by now.