A survey of more than 2,000 British drivers found a poor understanding of the legal and safety requirements for the tread depth of tyres.
Of those questioned, 40 percent gave an incorrect figure for the legal minimum tread while 20 percent confessed to simply not knowing.
Four percent of those surveyed said, incorrectly, the minimum tread depth depends on the make of tyre.
Alarmingly, 11 percent said they didn’t know what tyre ‘tread depth’ meant.
And if you do get into trouble through poor tyre maintenance sadly 38 percent have no confidence on how to fit a spare wheel.
The legal minimum tread depth in Australia is 1.5mm.