when was said Camaro made

Given that Teen Wolf Season 1 started filming in the last quarter of 2010, they had to have been using the 2010 model year Camaro which was sold in 2009-2010. It couldn't have been an earlier model as the 2009-2010 Camaro was the first of the fifth generation Camaros and the 2011 model year was likely released too late to be used in Season 1. Technically they could have used a 2011 model later, but there would be no real need to switch.