Hi John, The difference between the Camaro are the standard and available options and features, higher trim levels will have more standard featuresThe SS is the highest trim level and LS is the lowestSome features may be only be available on a specific trim levelThe RS is an exterior package only available on the 1LT, 2LT, 1SS and 2SS trim levelsRS Package, includes 20 x 8 front and 20 x 9 rear flangeless, painted aluminum wheels with Midnight Silver finish, body-color roof ditch molding and high intensity discharge headlamps; shark-fin antenna is body-colorHope this information is helpfulPlease feel free to visit the Chevrolet website for more information Thank you, Vanessa, Chevrolet Customer Service
