BMW 6-Series GC takes on the rivals
The days of the traditional boxy saloon are numbered. Meet the new breed of more-door supercoupe
Posted: 07 Aug 2012
The Mercedes makes very similar torque to the other two, which means in the low to mid revs it matches their performance. But then it runs out of puff while they'll keep steaming to higher revs and higher power, so if you wring the engines right out, the Mercedes is left behind. Its 0-62 time of 6.2 seconds is far from lazy, but the others are in the low-to-mid fives. That said, except during banzai overtaking, the Mercedes hides its deficit well.
Sometimes though, you wonder if the Mercedes has an engine at all. Not because it can't haul itself along, but because it's so quiet. Amazingly quiet for a diesel. At open-road speeds, especially if there's some other commotion like a coarse road surface or swishing 'screen wipers, you barely hear the engine note change as it shifts up the gears. Which makes it slightly uninvolving for a back-road blat. But the rest of the time the Mercedes powertrain is a marvel. Gear shifts aren't just inaudible, they're indiscernible because everything happens so smoothly. And the engine is the quietest at urban speeds too.