What's the list wisdom on 17" wheels and tires for a C4 wagon? I tried moving a set of 245/45 16 tires on 16x8 S4 wheels to my wife's A6 and while this combo worked fine on my urS6, they rubbed the steering knuckle on the A6. Has anyone run 235/45 17 tires on 17x8 wheels with a 32 or 35 offset? Are these too wide for the C4? Thanks, Lee