Hi Racefan
You can use it if you have some gp3 utils, such as gp3 edit, arttol 2000, careditor, gpxpatch, etc.
But the results with pitcrews and other graphics things are not going to be as well as they should be in gp3 2000.
Anyway I recommend you to use it because the tracks are excellent and the sk textures are amazing
Good luck
Thanks GP3Hotlaps