In response to the findings, the company's car insurance manager Joanne Mallon said that, while costs were high, there were ways that motorists could lower the amount they spend on their cars.
"The cost of motoring can be high but it is possible to keep it in check by, for example, shopping around for car insurance and fuel," she explained.
Sainsbury's findings come after its car insurance division found over two-thirds of motorists have admitted to "potentially dangerous behaviour" on the UK's roads in the past month.
The study also found that some drivers have revealed they have driven without wearing contact lenses or prescription glasses recently.
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