Just drove it today (and CLS 63 AMG, E 420 CDI with 730 Nm torque).
Nice sound, much better steering than before, more predictable ... Nice car to slide around and very very fast. Hits 250 kph limiter so hard that jour head jerks forward. Im 110% sure that it would go 320 or more without limiter.
Unofrtunaletly road was a bit wet (dam weather) so it was kind of spinning wheels in 3rd gear without ESP, so hard launches were not an option ... Did a nice burnout, though. I think there's a willage in germany that is stil enveloped in smoke