This is why I waited to get a 2+2 sports car until my kids (ages 5 & 7) were in the smaller booster style seats.
Rear facing baby seats and large forward facing toddler seats are going to have issues fitting properly in the Camaro. You've got a better chance in the 5th gen than the 4th gen of it fitting though because the rear seat cushions aren't the sunken hip hugger style of the last gen Camaro. Most people, not all, end up getting rid of 2+2 cars when their kids are little because the child seats just don't fit right (or at all).
Also, I caught this on Autoblog the other day -
http://www.autoblog.com/2009/04/21/r...fer-child-sea/
Seems as though NHSTA rules prevent child safety seat manufacturers from making car specific child seats in the US. That sucks because I think it would actually be safer to have a child seat designed for my specific car than one that is generic and "kind of" fits.