Originally Posted by ERinEC
Are people typically going 245/40 for an 18 x 8.5" winter setup?
245/40/18 would be a better fit for the wheel and suspension/fenders IMO but 235/40 is acceptable. The OEM winter package is 235/40 on 18x8 et20. With either size, you will likely want spacers (~15mm) at least in the rear.
I'm using 245/40, 18x8, et20 with 12mm spacer in the rear and it looks great.