The Audi A6 Avant is a comfortable, quiet and technologically advanced estate that's beautifully built. A BMW 5 Series Touring is better to drive and has a more user-friendly infotainment system, though.get the best price
Range-topping Vorsprung trim is ludicrously well equipped, with whopping 21in alloys and a panoramic glass roof fitted as standard. It's very expensive, though, so we'd stick with Sport or S line.
Engine: 55 TFSI Quattro
This range-topping 335bhp 3.0-litre petrol is seriously rapid. It can do 0-62mph in just 5.3 seconds, and there's strong acceleration is on tap from really low revs. It's a fantastic engine.