Auto Trader verdict:
The S5 is a spacious, stylish and beautifully built coupe that delivers stonking performance, unflappable handling and impressive comfort. As such, it fulfils its brief as a long-legged motorway express perfectly. It’s not short of agility, either, although more communicative steering would help no end. If it has an Achilles Heel, then it is its low-speed driveability. While the low-speed throttle responses are too abrupt and the gearbox is surprisingly jerky, all too often an early-gearshift strategy forces the engine into an uncomfortable rev band that creates excessive vibration.