I like my 18's
I like my 18's but... ... I come from an import background.
So far I started looking for bmw wheels the bolt pattern is only .65 of a mm off. They bolt right up. I cant tell the difference installing the rims.
Now, if you go cheep on rims they will probably not fit right. They will fit too far into the wheel well. So, just know this right off YOU WILL NEED ADAPTERS.
The good news is you can get them made. Bad news their 200 bucks a pair for quality. (that's why I only have the rear adapters and the front sit a little too far into the wheel well and rub at full lock too, not bad though just a touch)
WheelAdapter.com is your number one source for wheel adapters, wheel spacers, used wheels, and wheel studs.
Back to the good news you can find the wheels you want use them too. You just need to do whatever you need to do to get them in
Here's a couple pics of mine. I do wish I would have gone the same size all the way around though. The rear's fit on the front too and look great. Just need a lower profile tire for the front if I did that.
Beyern Mesh wheels. Nitto NT555 275.40ZR18 rear 245.40ZR18 front
Sizes Rear: 18X9.5 10mm offset I needed a 7/8" adapter (could have easily did a 1-1/4 to get a closer to the lip look)
Front: 18X8.5 10mm offset with no adapter and looks like the same spacing would work too. Warning though!!! I do have 2002 Camaro discs all the way around(front & rear) and that probably changes the spacing some.
I just gave the specs so if someone asked