GR Supra (2019-)
With petrol and diesel prices reaching record highs, it pays to know exactly how much your current car is costing you. Our free fuel-cost calculator lets you quickly work out the annual fuel costs for your car and even compare it to another model.
To find out your fuel costs, you'll just need the following:
Of course, price isn't the only thing you should consider when buying a new car. Only cars that are reliable, economical, comfortable, safe and good to drive can become a Which? Best Buy. Head to our to find out which we recommend.
To enter details for second car, click the Add another car for comparison button, then enter the relevant details.
We ignore manufacturer claims and calculate accurate mpg figures for every car we test.
To obtain these figures, we simulate driving in various locations (city and out-of-town roads, plus motorways) - something the official tests don't do.
As well as providing you with an overall mpg figure, we report separate figures for each driving scenario. This lets you see what the numbers mean for your wallet based on the driving you're most likely to be doing.
Spending too much money on petrol, diesel or electricity for your car? By making simple adjustments to the way you drive, you can make your fuel go further.