Which used Audi A4 saloon should I buy?
Go for the 2.0 TDI engine, which is smoother than the 1.9-litre diesel option. You get 138bhp and an average of 47.9mpg. Large diesels comprise 2.5-litre, 2.7-litre and a 3.0-litre V6s
Diesel models have better residual values, but if you want a petrol car the turbo-charged 2.0-litre FSI engine is a sensible choice. Avoid the underpowered 1.6-litre model, but the 1.8 turbo model is worth considering.