Last year, the first Academy was held with qualification possible by playing GT5: Prologue. Now though, if you want to enter this year, you must download the demo from the 17th. Then again, if you’re just looking to play for the fun of it, go nuts.
As the EU PS Blog says: “it will be the first opportunity to get a hands-on taster as to what Yamauchi-san and his Polyphony team have been carefully crafting and polishing at their Tokyo base.”
The car in the demo will be a Nissan 370Z, with a new track for GT5 being the track. That track wasn’t confirmed, but it was hinted it was the new Tokyo circuit.
Go find more info here. GT5 launches in Japan in March. No Western date yet.