well the rs has a stiffer frame and is a lighter car but doesnt have the sunroof but you can get one put in for about 300 plus labor so about 800if you really want one and you can buy the rims for about 300 or so on ebay with tires (ls rims). and i dont really care about the cruise control type stuff i think power windows is nice enough so if you want a faster and stiffer car then i suggest you get a rs but if you want the sunroof then that just defeats that so if you must have the sunroof then just goahead and get the ls