These TSW Interlagos will work:
18x9.5 5-120 40 0ffset. Available in black or silver and only around 20 pounds. Lighter = faster.
http://www.amazon.com/TSW-INTERLAGOS.../dp/B00849I94S
TSW Nurburgings in the same size will also fit.
They come in gunmetal and sliver but are a little heavier. You will also need '16 Camaro PSI senders and tuner lug nuts. You can see the Nurburgrings on the orange 1Le below.
http://www.discounttiredirect.com/di...mn=Nurburgring
C6 Corvette front wheels will also fit. The bolt pattern is slightly different than the Camaros but they fit. The C6 repos are about the cheapest option but these wheels are heavier than the TSWs. It is hard to find used C6 wheels as they are popular 5th gen drag wheels.