boxy from side to side(width)?

Falken 452's
Toyo T1R's
Vredestein Ultrac Sessanta's (I read somewhere that these are true in 255mm while some other manuf. claim a #, but usually fall a bit short which give the more roundedness)

The tire size I'm going for is 225/40/18 and 255/35/18 if that helps.

I'm going to be running a bit wide in the back so if a certain tire were to give more clearance that would help in my decision.

If by the title you don't under what I'm talking about maybe this can help you. I'm talking more so about the design of tire and true side to side measurement rather then just going stretched.

P.S. spare me the running staggered on quattro comment
TIA