Pro Street teaches over privileged illegal racers that there is a way to be legal, and be going over 200 Mph.
My honest to god most favorite NFS game would have to be the Underground series, they knew how to make it fun, which always had me wondering why they have not capitalized on that, and made more, eh, I really hope that they bring it back, or make it better, which they did not do with shift or carbon, or most wanted... -cough- yeah...
My favorite qualities from NFS: ProStreet would have to be the drag racing, it brings more to the table when they actually make it feel like you're actually drag racing, haha.
Hopefully they make another NFS: Underground, i really REALLY want one, really bad, mabye i'll send them a letter, and hopefully they really do read it and take notes.
And thats why i think that NFS: ProStreet for the XBOX 360 deserves a 8.5 out of 10.