This is nearly identical to Gran Turismo 6. If you've liked gran turismo games in the past, you'll like this one. Same music, same racing styles, same... Uh... Everything. Not really sure why you'd want to buy this new. I would wait a few years for it to go on sale. It does have better graphics and a higher frame rate, but that's about all that is different. There are several bugs they need to iron out, so hopefully they do. (Licensing test A9 must be a mistake).
There is one thing different. You can't sell cars, and they make many cars "invite only". It's a car rotation that makes it so you can't just buy the cars you want. You'd need to spend real money to get them before they go out of rotation, or you're SOL. That's the reason I rated it for one star.