So, after a road incident yesterday morning, (See below), I will be running my stock rims and wheels again for a while. I'll need to see if my rim can be repaired, but more importantly, I need to get some new rubber. I noticed that the Dunlop Direzza ZII tires have no stock in the 205/40R17 size native to the ST's rims. TireRack does have stock in 215/40R17 (10mm wider) or 205/45R17 (5% more sidewall). Obviously the 205/45 will fit, but will the 215/40 fit? In reality the additional width is negligible so I don't think it's an issue, but what's your suggestion? Taller or wider?