I had 19" rims for a couple of weeks until I noticed that they didn't look very fly. Trust me, don't waste your money on 19's and go straight for 21's with ultra-low profile tires... you'll never go back. I think it's really what the designers had in mind for the IS (they look SO GOOD), but they just backed out at the last minute. Also, be sure to get a dual exhaust with tips that are at least 12" in diameter... they make the car DA BOMB BABY BOMB BABY! Don't forget lots of stickers.