As above. I have been searching the internet for information but alot of it is very confusing. I currently have mitchelin pilots sport 2's on my audi A4 (234/40 ZR18 (95Y)) but looking at replacing them with Uniroyal Rainsport 2's (235/40 R18 (95Y)), because i need 4 new tyres and cannot afford the michenlins this time round. Can i do this? Has anyone else done this?