Performance & drive
What it’s like to drive, and how quiet it is
The SL has always been a fine luxury roadster with a mildly sporting bent, and this is still true. As standard, the SL gets adaptive dampers that can be set in two modes: Comfort mode, which we found provided a cosseting ride on scarred UK roads, and Sport, which is still at the more comfortable end of the sports car spectrum.
Changing the suspension modes brings with it changes to the steering weight and engine and gearbox response, although these are all good whichever mode you choose. The SL 400’s V6 is smooth and broadly powerful right the way through the range, while the automatic gearbox masks any turbo lag.