Very powerful and well built, but the transmission shifting is truly awful on mine...some new "wet clutch" technology that just doesn't work well.
Hesitates badly in confort mode as it rides its clutch, and in sport it hangs on to 1st gear too long and jerks thru 2nd for a nano second on its way to 3rd.
The car is fine if you're pushing it hard, but it just isn't programmed for normal driving.
Previously had an S550 sport and it is a much more enjoyable car, as is an S65 or S600...all these have conventional smooth shifting automatics.
Build quality is excellent.
Seat comfort outstanding.
Power and handling unbelievable for such a large vehicle.
Transmission kills all the joy.
Could use the exhaust volume toned down just a bit.