Which used Audi A8 saloon should I buy?
The 3.0-litre V6 diesel is refined and packs quite a punch, combined with impressive smoothness. Plus, with eco measures such as stop-start, it’s reasonably fuel efficient. For most drivers (or owners) most of the time it delivers more than sufficient performance.
The diesels more or less match the acceleration figures of their similar-sized petrol brethren, but it’s the extra torque (combined with economy) that makes the petrol cars redundant – especially the W12-powered car. We'd only recommend the petrol route if you cover very few miles and must have the absolute last word in refinement.