If you look at lfracing.com you will see there are some new screenshots of Grand Prix 3 that have graphics that are FAR better than what I have seen of the warez version. Although the warez readme file says July 2000, we think that this is the warez site changing the file to gain 'respect' for having such a great game first. Take a look at the screenshots! I think they look very good!
Chris Silles let me know that F1sims UK is doing a Grand Prix World competition to win 5 copies of this Grand Prix manager game, which I suppose you could call 'gp3s sister'. Get to that here!