Evenin' people. I got an advisory on my MOT for 2 new rear tyres. 1 has wear due to an under-inflation problem & the other has an 'egg' on the inner wall 8O Not cheap tyres either, Avon ZZ3's all round. I believe on a quattro it is a good idea to replace tyres in pairs but do I need to buy Avon's again to match the front 2 or will any pair of the same make be ok.? Secondly, should I fit the new ones to the back or the front or don't it matter? Cheers Si.