I'm considering getting a secondhand BMW 3 or 5 Series but the vast majority of my driving is in the city and I rarely do over 20 miles per day. There are some great deals on diesel cars but should I ...
Motoring magazines often refer to taking the car for a fast run to clear the DPF. Surely a better way would be to drive in 4th or 5th gear with increased revs but slower speed since it is the increase ...