Which used BMW 3 Series saloon should I buy?
The 320i petrol might be a good idea for those who live in a city and mostly do short journeys, but the 320d is a better all-round choice. It doesn’t have the lowest running costs in the 3 Series range, but it’s not far off. However, our favourite, if it fits into your lifestyle, is the plug-in hybrid 330e. It offers all that any 3 Series does and has the potential for huge savings in fuel bills, provided you can charge it up regularly and the majority of your journeys are short.