Amazing, the torque delivery is very sharp, and you're at 80 before you can clock to 60. It's a very impressive piece, it's also comftarble, chassis is well composed but could use more work for higher speeds in the twisty stuff, gets a little wobly then. The seating position was a bit off and the seats weren't as heavily bolstered as they should have been. I think AMG could have done a better job in making this car more unique, as most C-class's here already have the AMG sport pack as std. equipment. All in all I'd give this car about an 8/10, I've driven the S4 too, but the only thing the C55 really has over the S4 is straight line speed and steering feel.