Vauxhall Calibra 2.0 16V Tyres

As soon as I had these tyres fitted (front only), tramlining was very evident and was the worst of any tyres I've previously had i.e. Goodyear, Continental, Avon, Hankook. Although never really pushed to the limit, comfort seems ok as is the grip level in wet and dry conditions (mix of motorway and country roads). Having said that, I was horrified to find that the tyres have worn out (evenly across the tread) in just over 5000 miles, by far the worst wear rate I've experienced so far.