Courtesy of "r8man" from the Playstation.com forums, who was lucky enough to visit the official site while they were working on it, and found all of the current "dead" features unlocked, as well as a download for a PDF of all the cars. His story was corroborated by several others who also saw the "unlocked" site before they finished fiddling with it (and everything went back to the way it was).

It sure as hell looks real, at any rate. It has all the cars we've already known were going to be there, as well as nearly all of the new cars from the PAL version (with the exception of the Auto Union, which does seem to be a PAL exclusive).