that's according to an analysis of official figures by a motoring magazine. nina is at a garage in bolton for us this morning. good morning. it is very much a learning curve for me this morning. lee is here changing one of the tires. good morning. what has gone wrong here with this one? the depth of the ridge plume accurately tyres, one of the things that commonly goes wrong with mots? yes, it is one of the things customers don't check. you can check it using _ customers don't check. you can check it using a _ customers don't check. you can check it using a 20p— customers don't check. you can check it using a 20p piece. you should be checking _ it using a 20p piece. you should be checking the tread for any where, naiis~ _ checking the tread for any where, naiis~ and — checking the tread for any where, nails. and also for any damage that could _ nails. and also for any damage that could have — nails. and also for any damage that could have occurred. if it nails. and also for any damage that could have occurred.— could have occurred. if it becomes threadbare — could have occurred. if it becomes threadbare it _ could have occurred. if it becomes threadbare it can _ could have occurred. if it becomes threadbare it can be _ could have occurred. if it becomes threadbare it can be fatal? - could have occurred. if it becomes threadbare it can be fatal? it - could have occurred. if it becomes threadbare it can be fatal? it can l threadbare it can be fatal? it can be premature — threadbare it can be fatal? it can be premature failure. _ threadbare it can be fatal? it can be premature failure. that - threadbare it can be fatal? it can be premature failure. that is - threadbare it can be fatal? it can be premature failure. that is the thin for be premature failure. that is the thing for mots, _ be premature failure. that is the thing for mots, they _ be premature failure. that is the thing for mots, they are - be premature failure. that is the thing for mots, they are not - be premature failure. that is the l thing for mots, they are not doing them forfun. they thing for mots, they are not doing them for fun. they are really important. derek —— literally carry out dozens of cheques. they really