As Britons look anxiously at their fuel tanks, some of Britain's most efficient used cars could help ease efficiency worries

Drivers could receive "slightly more" fuel by topping up their petrol and diesel cars at certain times of the day.

One supermarket leads the way in offering the cheapest supermarket petrol and diesel fuel this December.

Drivers have been urged to fill up their petrol or diesel vehicles at major supermarket stores, with motorists set to save up to £2 per top-up.