depends on what rims you have? If you have staggered rims you CAN run non staggered tyres, but then youd have to take the tyres off the rims which is a bit of a faff, say for example MV2/108s you can run 225/40/18 all round (which i have done many a time with no adverse affects) and they dont look stupid either as many cars can come with a 225 tyre on an 8.5 rim (which is the rear size of an mv2/108)