We don't generally think of the tread on tyres as a means to improve our driving, but it turns out there are some wear indicators that can help you improve your technique.Photo by The Tire Zoo.
The main one to watch out for is the edges on the front tyres being worn down. This is usually a sign you're consistently taking turns too fast and should start slowing down. The tread on your tyres can also tell you a whole series of safety warnings, including bad alignment, underinflation and wheel imbalance. Have a look at the chart over on Dummies to see what your tyres are telling you.