Comparing the Audi RS6 Avant and the RS7 Sportback is like choosing which identical twin is best. Under their skin, they’re identical machines and while their body styles are different, they’re barely different in terms of weight, so they’re going to performance the same. Yet, Mat Watson from Carwow decided to compare them anyway.
In this new drag race video, we see which is faster from a standstill, which is faster in a rolling drag race and which has the better brakes.
Both cars use almost identical gear. Both the Audi RS6 Avant and RS7 Sportback have the brand’s 4.0 liter twin-turbocharged V8 with 591 horsepower and 590 lb-ft of torque. They both also have the same eight-speed ZF automatic, Quattro all-wheel drive and bit brakes. However there are some differences between these two cars’ specs.
The Audi RS6 Avant has the big 22-inch wheels, while the RS7 has the entry-level 21-inch wheels. That might not seem like much but the smaller wheels are a big lighter which, in a race as closely matched as this one, can make a difference. Also, it seems as if the Audi RS7 has the standard air suspension in this test, as the nose pitches up under acceleration, while Watson’s RS6 has the optional hydraulically-linked Dynamic Ride Control.
In the end, which car is fastest? Honestly, they both perform exactly the same. The Audi RS7 is about 10 kg (22 lbs) lighter, so it’s not enough to make a difference. The only real differences in speed during this video were do to driver error. Even in the braking test, they both performance almost identically.
So choosing between either the Audi RS6 Avant or the RS7 Sportback really comes down to style versus practicality. If you want more style, go with the RS7. If you want some added practicality, go for the RS6. Personally, it’s the RS6 Avant all day for me but I can see why someone might choose the RS7.