you gotta get em all! they are all a bargin! my personal favourite has to be my R32 and R34 both from the dealership and both running over 600hp, serious handling for a cheap price...GTR poowwweerrr!
Nissan GT-R SpecV is the best. The GT Academy Version is the same, but has some stickers and keeps the better looking stock tailpipes. Unfortunately the GT Academy Version always has black wheels and an opal black wing. You can't change them.
I own the R32 (my favorite) and a GTR R35 07. Would have loved to buy the Black masked GTR but couldnt afford it at the time. Honestly tho, the R35 is growing on me. Got it pushing about 720hp and a crazy good handling setup. it is the secks.