how much money do you have to spend. as a gxp owner i hate to say that if you are looking for a car with alot of mod options go with a gtp instead. right out of the box the gxp is awesome and runs with alot of other cars out there. if you have the money a turbo'd gxp is the best thing you can have in the grand prix range. but thats just my opinion. i love my gxp though. im 5'8" and my head is about 3 inches from the headliner, but the seat has alot of adjustment.