Just bought a new to me A4 B7 2007 2.0TDi TDV. The car currently has 235 45 17 tyres all round but I need 2 new tyres on the front. I already have 2 6mm+ 225 45 17's spare and was wondering if it would be detrimental to fit these on the front of my new Audi. I obviously don't want to cause myself any problems for the sake of a couple of hundred quid, (having just splashed out on the car)but with already having the tyres I thought i might save myself some cash.
Also should my old B5 16" wheels that currently have winter tyres on them fit and be ok on the new b7 ?