The M6 has impressed with its acceleration as of late but acceleration is only one part of the story. The numbers Car and Driver gets for the M6 are pretty much inline with the numbers achieved for the F10 M5 which makes sense when one considers the difference we have witnessed of the M6 coupe and M5 going head to head and the added weight for the convertible model. 12.2@119 in the 1/4 mile? Sounds about right.
The fastest car of the bunch ended up being the SL63 AMG with a blistering 11.8@124 1/4 mile sprint, wow. The fattest car of the bunch ended up being the M6 with a curb weight of 4496 pounds. Wow is it a fatty. The SL63 AMG even with its folding hardtop undercuts the M6 by 368 pounds. Once again, that is with a folding hardtop people. The Benz also gets closer to 50/50 weight distribution than BMW with 50.9/49.1 versus 51.2/48.8. And what about when the weight of the Carrera S is factored in versus the M6? How about a whopping 1069 less pounds to move around.
Ok, what about handling? Every single car went through the slalom faster than the M6. The M6 achieved 42.0 mph while the Jaguar hit 42.1, the Benz 43.6, and the Porsche 47.3. How the mighty have fallen, Jaguar is beating up on BMW too?
The problem here is the BMW is no longer the most exciting to drive. BMW never was the fastest, or offering the best skidpad numbers, but the most fun. Everything just came together perfectly for an amazing all around driving experience. The M6 scores last in the fun to drive and steering feedback factors compared to the other cars by an eye-openingly wide margin. This just isn't the same BMW people and don't just take my word for it:
"Even with all its many driver-adjustable settings for steering effort, throttle response, and suspension stiffness, it’s impossible to make the M6 fully at home on winding roads. The steering is duller than the others, and the body wallows and leans more as the mass pushes the suspension around. An overriding sense of isolation meant the clearest feedback we got came from our drivers, complaining that they felt less confident driving hard into corners, unsure if the grip would hold.
There’s an artificiality to the M6, from its soft-then-hard brake pedal to the way the engine sounds more like interstellar gas eruptions than internal combustion. We know BMW plays engine sounds through the audio system’s speakers, and the M6 is the only car here in which the engine note gets quieter and more distant with the top down. Hmph!
The M6 is not horrible, but it’s not really an M, either. It’s too girthy, too soft, and too ersatz. If only it were as good at generating emotion as it is at generating test numbers. BMW needs a separate badge for these ultrafast luxury barges, the M5 and M6, to separate them from the M3. Until then, we’ll just rate it a “U” for uninspiring."