The graphics engine, also say Sierra , is a completely new one. Very quickly, in fact. Quicker then anything else out there, it seems. Certainly faster than GP2 . In any case, while I could never run GP2 with full settings on my machine, I could easily do the same with N2 .
Replays are, of course, fully fiddleable.
You can change camera views, edit, save and load replays to boast to your friends with. The amount of footage you'll get is dependent on how much RAM you have. I never had so much fun crashing into other cars as I had here, with the replays showing details in all their gory splendor. And that's saying a lot, actually. Its good, and that's all there is to it.