One might argue that the Quattro all-wheel drive system of the Audi is hard to beat. Some might say that the twin-turbocharged V8 engine of the Mercedes is simply superior here, whereas others would defend the BMW simply because it is arguably the most fun to drive.
Okay, that obviously does not answer the question, so it’s time to see them in action, in a video that focuses solely on the straight-line performance, from a standing and a rolling start, and includes brake tests too. But before doing that, let’s see what the spec sheets say, starting with the Audi, which uses a twin-turbo 2.9-liter V6 that makes 444 HP and 442 lb-ft (600 Nm) of torque. It can hit 62 mph (100 km/h) in 3.9 seconds and up to 174 mph (280 km/h) with the optional RS Dynamic Package.
The C63 S, on the other hand, which is the pinnacle of the previous-gen C-Class lineup, has a 503 HP and 516 lb-ft (700 Nm) twin-turbo 4.0-liter V8 and will do the 0-62 mph in 3.9 seconds, with a top speed of 180 mph (290 km/h). And the new M4 Competition uses a twin-turbo 3.0-liter straight-six with 503 HP and 479 lb-ft (650 Nm), for a nought to 62 mph of 3.9 seconds and a maximum speed of 180 mph (290 km/h).
On paper, then, they are almost inseparable when it comes to straight line speed. However, 0-60 times are one thing; how they actually perform in the real world can be quite another. So, which comes out on top?