Every brand's most fuel-efficient car, and how cheaply you can buy them

The average price of a tank of petrol or diesel may be less than it was last year, but prices are still high. So, if you're thinking of changing your car and are looking for one that's capable of mega miles per gallon, what should you choose?

Well, here we're looking at every brand's most efficient petrol, diesel or hybrid car. Each of them has been measured by its official average fuel economy figure, and where available, we'll also reveal our real-world True MPG data.

If anything takes your fancy, simply click on the relevant link to read more about it in our full review, or see if you can get the model you want for even less by using our free New Car Deals or Car Leasing pages.