Being in S-Class territory requires more qualifications here than anywhere else. Even as an AMG performance machine, the S 63 is more dedicated to comfort and ease of use than almost anything else you’re likely to spend £130,000 on.
Mercedes’ Active Curve Tilting system illustrates this perfectly. Few manufacturers could develop an active suspension system that allowed a car to begin leaning into a bend ahead before you’ve even turned the steering wheel; fewer still would be at pains to point out that the system’s purpose isn’t to enhance lateral grip or handling manners, but simply to make life a bit more comfortable for cabin occupants.
The S 63’s steering wheel is light in your hands and flatly refuses to get heavy even under extreme loads.
There’s no serious shortage of grip, traction, balance or directional response, but the chassis and steering are tuned to act more as filters than conductors of forces from the tyres’ contact patches. Nuanced steering feedback and rear axle feel are casualties of that approach, while straight-line stability and resistance to bump steer benefit.