Mercedes-Benz AMG C-63 Sedan vs Audi RS 7
Though not a prime competitor, 2017 Audi RS7 Sedan receives competition from the AMG C-63 Sedan. The ride flaunts a 4.0L turbocharged 8-cylinder engine complemented by a 7-speed automatic transmission mode. The 4.0L turbocharged engine is capable of generating 469 hp of power and even better 479 lb.-ft. of torque. Although the ride takes 4.6 seconds to hit the 60 MPH, it covers a quarter-mile in 11.9 seconds.
With a curb weight of 3782 lbs., AMG C63 Sedan is much lighter than the Audi RS7. Even Porsche Panamera Turbo is comparatively heavier with a curb weight of 4398 lbs. Mercedes-Benz AMG C-63 Sedan is able to come to a complete halt during panic braking at 106 feet while decelerated from 60 MPH. The ride delivers a combined fuel economy of 21 mpg, better than that of the Audi RS7 Sedan. AMG C63 Sedan supports a ground clearance of 5.1 inches.
Porsche Panamera Turbo vs Audi RS 7
2017 Audi RS7 Prestige receives a formidable competition from the Porsche Panamera Turbo. The ride features a 4.0L Twin-Turbocharged V8 engine, capable of generating 550 hp of power and 567 lb.-ft. of torque. The hearty engine is coupled with an 8-speed automatic transmission mode. Panamera Turbo reaches 60 MPH in 3.6 seconds and covers a quarter-mile in 11.5 seconds. It has a CO2 emission value of 8.4, while the same for RS7 Sedan is 9.8.
Pricing options for the Porsche Panamera Turbo start from $146,900. The coupe is 99 lbs. less heavy than that of the RS7 Sedan. Despite having bigger brakes than that of the 2017 Audi RS7 Sedan, Panamera Turbo takes 111 feet to stop while decelerated from 60 MPH. Comparatively, Audi RS7 Prestige stops in only 101 feet. Nonetheless, Porsche Panamera Turbo offers a combined fuel economy of 21 mpg. For RS7 Sedan, it is 18 mpg.