Hi.\nI have a 2004 Tigra 1.4 with Dunlop SP Sport tyres fitted. After 6500 miles\nthe tread wear is 3mm, ie. New tyre 7mm tread depth and current reading is\n4mm. I have complained to Vauxhall motors that at this rate I will have to\nreplace the tyres at around 10,000 miles and that I feel this to be\nunacceptable. I am trying to collect as much info on the subject of so\ncalled 'Normal' tyre wear, that is not caused by incorrect tyre pressures or\nsteering/suspension mis-alignment, preferable on the new Tigra or any other\ncar using the same or similar type tyres. Would really appreciate any input\nat all. Thanks. Ken Walker, Derby. UK.