Wow, now I am definately liking the inclusion of Activision on Gog. I remember having this one and this is a great driving / role playing type of simulator. The graphics are a little outdated, but the gameplay is so good that you won't even be thinking about the graphics when you are playing this one.
The only drawback that I can think of might be the lack of multiplayer now. I remember wanting so much to play the story mode, but never finished it because the multiplayer was so much fun, I couldn't boot this thing up without wanting to see how many other players I could outrun and outshoot.
The car design ability was great, and it especially made the multiplayer that much more enjoyable, trying to see what your next car design was good for or if it was even good for anything.
I am thinking that like with other outdated multiplayer games, there will hardly be anybody online anymore who plays this. In either case, I am definately going to pick this one up from Gog. Even without without the multiplayer, there will still be something positive about that. I will finally get a chance to enjoy the single player story mode. ;D