Most fuel efficient car UK: new cars with best MPG economy - plug-in hybrids from Mercedes to Toyota

A full tank of petrol now costs more than £100 and diesel is edging ever closer to a frightening £2 a litre, leaving drivers struggling to find ways to save money.

Buying a new car isn’t a cheap option but if you’re in the market for new wheels, it’s worth knowing which will return the best MPG to save money in the long run.