The clever bit of gadgetry that comes with the latest Mercedes S Class is the Active Curve Tilting. But it is just a gimmick or does it offer genuine improved comfort? Auto Express took a S63 AMG model for a spin to see how the German carmaker has honed its luxury cruiser, and it's clear that the focus has been on improving ride quality. In addition to stopping passengers from being pushed around when taking on a twisty road, the two-ton coupe also rides on an air suspension and utilizes Magic Body Control.

It's also one of the quietest, and quickest, luxury coupes on the market.