when I bought my car , private sales , it had new MOT with two new (budget ) tires on the back which was quite good fun going sideways round corners in the wet but couldnt really afford to replace them . One of the front tires was a bit worn so looked around for a pair but then got a bit suspish when i went by the " your speed is " signs and I was doing 35mph but clock was reading 40mph , as i have xj8 17inch wheels on I did a bit of research and found the size hadnt been worked out right for the car so need to replace all 4 grrr Luck for me though my mechanic races in the toyota sprint series and races with Jonny Milner motorsport who has a huge tire place a few miles from Hull so I got him to work out the right size and I got 2 x toyos with 7mm tread and 2 x dunlop sport with 7mm tread for £165 fitted and balanced bargain, handles like a mini now lol J