Which used Peugeot 407 estate should I buy?
You'll find plenty of diesels, which is good news. They'll cost more to buy than the equivalent petrol models, but it's a price worth paying for their smooth, strong, frugal character. There's a 2.7 diesel, but it isn't cheap and you can easily get by with the performance of the far more fuel-efficient 136bhp 2.0 HDi - our favoured model.
If you're dead-set on petrol, the 2.0 gives the best balance of cost and ability, but the 2.2 isn't far behind. The 3.0 V6 is quick but pricey and the 1.8 too laboured when loaded.