I definitely wouldnt say there are no down sides, the dash on the gxp's are cheap and will make alot of popping and crackling noises(but yes I think the interior looks good). Tires are a pain since you cant rotate, and if your getting 25 mpg in the city you must be pushing the car from behind while it is idling through the city......its about time for some new tires for me though, I will get a vid soon of me roasting whats left of these off.