whats the differance between the camaro rs and the camaro ss?The RS is an exterior package that can be ordered on all trim levels between 1LT and 2SSThis package includes 20 x 8 front and 20 x 9 rear flangeless, painted aluminum wheels with Midnight Silver finish, body-color roof ditch molding, high intensity discharge headlamps and RS unique tail lampsIt also includes the rear spoiler.The SS is a trim level that is best described as a wide scoping package that includes the LS3 or L99 engines depending on manual or automatic transmissions respectivelyThe 2SS has the 4 guage cluster and leather seating while the 1SS does not have either option but retains the LS3 or L99 enginesI hope this answers your questionJeff Morris, GM Customer ServiceOther related question