I agree with Tobin and well said. To piggyback off of what he said, before you pull the trigger on the 2013 Camaro IRS
(if you already haven't) make sure you do your research on wheels. As you've already stated, you're having a little difficulty finding wheels and more than likely, you're gonna have to get a custom wheel made. Either that are you'll have to settle for some ugly wheel that you may not like. So, be prepared for the cost of custom wheels if that's the case. If they are not in the budget at approxiamtely $4k and up, you may wanna rethink this upgrade. Also, at times you can find used custom wheels for a really good price, but then they are not spec'd for your '13 Camaro IRS and by the time you get them rehooped, etc. that still takes the price to another level. Not to mention sometimes the pad height may not allow the custom wheels to fit right depending on what the original owner had them spec'd for. Hope this helped and good luck!