With the 'GrandPrix' series of games, there is the ability to 'patch' or add different 'skins' for cars of later seasons and other tracks, etc, not included in the original release....much like the different skins not included with the WB release....but to use the patching software you need also to run a No-CD patch or the poor proggy gets confused, so for that reason I use the No-CD, and I rather have full-installs and not bother with CD-swapping anyway.
My nephew called me and mentioned he had a 'copy' for me of GrandPrix 4 [just days after its release.....I said fine, but I'll be buying it anyway [$80 AUS] as I 'know' I'll like it....[I'd already got some patches, the trailer, walls, and the No-CD in anticipation].
Only two problems with it....
1. AAAAAAARGH, my system needs to be upgraded....CPU and AGP port speeds are too damn slow....
2. I personally have pushed these cars....[even on my own, on occasion] and there's no way a single race official can push your wreck that has lost 3 wheels and its bum is dragging on the ground.
Now if only they can 'accurately' sim the dynamics of OUR input....that'd be nice....