Tax has also risen by 12.5 per cent, although the figures show it has risen by almost a third since 2006.
Joanne Mallon, Sainsbury's car insurance manager, said that rising oil prices were likely to push the price of fuel back up and the increase in road taxes had contributed to higher overall costs.
She added: "Those costs, though, can be kept better in check by shopping around for car insurance and fuel for example."
Today, supermarkets announced a second round of fuel cuts after bringing the price of petrol under £1 a litre.
Morrisons and Asda have cut unleaded down to 97.9p, followed by Tesco.
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