Peugeot 406's are great cars. I had my 406 for 10 years and only just sold it last month due to the mileage getting too high and it needing some work for the next MOT (brake discs and tyres). It was 13 years old though with 156K on the clock and hadn't had any major issues. The worst was a replacement radiator and cooling fan. The rumours of French car build quality and reliability are not true. The 406 is a very solid car and the diesels go on forever. I've just replaced it with a 407 HDi. Still do miss the 406 though as it had a lot more power (2.0T petrol) and the handling was a bit more precise.