Guys, I've got the GT5 Prologue Demo...it's quiet easy..
1> Choose New user
2> Creat a japanese Account
3> Sit down before hand with a pen and paper as you set up the "English" language account and write down the Questions of each page, a Drawing and labels above will help you to figure out what the "Japanese" account asks you to fill out, for the address i got on google and I searched for a random company and address in japan and then i filled it out on the Questionarie....
4> Sign in
5>Go to Racing Game Demos
6>Download GT5 Prologue
7>Play the Game
8>Come VERY close to the Lexus IS-F Time on the F1 Ring course with the 135i
Cars in the demo:
New Nissan GT-R (Fastest in Demo)
Lexus IS-F (2nd Fastest in Demo)
BMW 135i (3rd Fastest in Demo)
Mitsu Lancer Evo X 5th
Subaru WRX STi 4th---Much faster than the Evo
New Mazda 6 Slow FWD
Daihatsu tiny car Slow 3 Cylinder
Enjoy.