The Audi A6 has been around for a while and is now in its 5 generation, with the models getting more highly specified with each new introduction.
The C8 introduced in 2018 is a particularly accomplished vehicle, with some models using a mild hybrid system to help fuel consumption and performance. Generally, the cars ride quite well, although some people find the suspension a bit on the firm side for UK roads, particularly those with the S-Line or sports suspension.
Koni have recently introduced Special-Active dampers to help ease this issue and give a more comfortable ride without sacrificing handling or dynamics. These dampers also fit the latest Audi A7 models too.