Which used Peugeot 407 saloon should I buy?
The diesels are far and away the better drive. You'll pay a premium for them, but we think it's worth it, although we'd steer clear of the 2.7 V6 diesel - it's too expensive to buy and to run. Besides, the 2.0 HDi gives you all the smooth, strong performance you need. There's a 2.2 HDi if you want a little more oomph and the 1.6 HDi is a good choice for those on a tighter budget.
There are four petrol engines - a 1.8 (you need to work it hard), a 2.0 (our choice), a 2.2 (second best) and a 3.0 V6 (plush, fast, smooth but pricey).