Which used Audi A6 saloon should I buy?
There isn’t an engine in the A6 range that feels out of its depth. Even the entry-level 2.0 TDI diesel has more than enough low-rev shove to haul along a fully loaded car, plus you can overtake at high speeds with confidence. In fact, it never feels remotely underpowered, making it our favourite A6 engine. If you're feeling flush, the 215bhp 3.0 TDI has all the power you’ll ever need, while the 268bhp and 316bhp twin-turbo versions are particularly swift.