Powering the RS7 is a 4.0-liter twin-turbo V8 mustering up 591 hp and 590 lb-ft (800 Nm) of torque that’s coupled to an eight-speed transmission. Whereas that does give the present RS7 a 38 hp and 74 lb-ft (100 Nm) benefit over the earlier technology mannequin, it isn’t fairly sufficient to match the GT 63 S 4-Door.
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The Mercedes additionally makes use of a twin-turbo 4.0-liter V8, nevertheless it delivers a unprecedented 630 hp and 664 lb-ft (900 Nm) of torque and is mated to a nine-speed transmission sending energy to all 4 wheels. Mercedes says the tremendous sedan wants simply 3.1 seconds to hit 60 mph (96 km/h), and through these assessments, its energy benefit was merely an excessive amount of for the Audi to beat.
In a drag race, the RS7 and GT 63 S rocket off the road at comparable speeds, however after the primary 30 toes or so, the Mercedes begins to edge forward, ending the quarter-mile in 11.1 seconds in comparison with the 11.6 seconds wanted for the Audi. It’s a comparable story in a rolling drag race, the place the Mercedes and its added grunt show to be simply an excessive amount of for the Audi to take care of because the beast from Affalterbach accelerates off into the space.