What would you like to see in Gran Turismo 5?   

i would like to see the Gran Turismo 5
it must be Xbox 360 game.

surely to be i am sure more stuff will be more exciting on gt5 which will be cool but i can get it yet because i don't own a ps3 or a xbox 360 and it is a shame that i only own a ps2 but i wanna get gt5 and a ps3 too

Yes, a customisable body and that sponsors pay you to have their company name on your car, more supercars like ferrari, Lamborghini, Porsche, McLaren, Etc.

certainly more tracks, but also bring back some of the tracks from GT1 and GT2 and even GT3 such as the Rome tracks, and also have more endurance style races over a wider range of tracks and not all simply for top of the range race cars, the 4 and 8 hour endurance races work well because they are family model style cars that are being used.