TEN million motorists have suffered pothole damage to vehicles in the past three years, a poll found.
And 2.4 million have skipped or delayed getting it fixed.
The average bill for repairs is £144 — putting the total UK cost at up to £1.7billion a year.
While road craters cause the biggest unexpected repair bill, the survey of 2,000 motorists also revealed that more than five million are driving potentially unsafe vehicles because they cannot afford to fix all other issues as well.
Of 2,000 drivers polled, 15 per cent had ignored vehicle warning lights and mechanics and often try to do repairs themselves to save cash.
Across all 34.6 million motorists, that would mean 5.1 million ignored advice.
But 37 per cent said delaying fixing damage cost them more in the long run.
ClickMechanic also found men are more likely than women to ignore an MOT advisory — 16 per cent compared with 12 per cent of women.
The car service site’s boss Andrew Jervis said: “Millions of potentially unsafe vehicles are likely on the roads.
“It is not worth the risk — ignoring what may initially be minor makes repairs more expensive to resolve.”