Tyres are the only part of your car that actually makes contact with the road, so it’s vital to make sure they are in good condition.
You should check that all your car’s tyres have plenty of tread depth (how deep the grooves go in the tyres’ surface). The legal minimum tread depth is 1.6mm deep across the central ¾ of the tyre’s width, around its entire circumference. You shouldn’t wait until this point, however – most experts recommend not letting the tread drop below 2.5mm of tread. An easy way of checking is to pop a 20p piece into one of the ruts – as long as you can’t see the outer band of the coin, they’re ok.
The pressure in your tyres is important too, so you should check this on a regular basis. Your owner’s handbook will tell you what amount of pressure is right for your car. It’s also worth taking a good look at your car’s tyres – check for any cuts, cracks, nails or broken glass that could cause a problem.