I'm running 17x7.5 with 215-45s and a 45mm offset. Plenty of clearance inside and out.
You should be able to run 225-40 with 42mm offset.
Any clearance trouble might be on the outside at the fender lips.
I believe 225-45s would be tto tall.
I recomend the 215-45-17 as a perfect fit. The 7.5 width and 42mm offset will give the 215's a much wider look.
