Audi S6

Audi S6 is the high-performance version of the Audi A6, offered as a sedan and, in many markets, as an Avant estate. Since the 2000s it has used quattro all-wheel drive as standard and has shifted from naturally aspirated large engines to turbocharged and electrified powertrains. 

In user reviews, the Audi S6 is often seen as a car for drivers who want speed without drawing too much attention. Owners like its effortless acceleration, secure quattro grip, refined cabin and long-distance comfort. The V8 and V10 versions are admired for character, while newer models are valued for torque and efficiency. Complaints usually involve high maintenance costs, complex electronics, expensive suspension or drivetrain repairs, and a heavy feel compared with smaller performance sedans.