In the first release version the European manuals were mixed up. Half of the manual was in German, the rest in French and visa versa. The same happened to other languages.
In the development stage the game was named "Grand Prix 2001". But later on Infogrames decided to name it "Grand Prix 4", because it should not be one year behind EAs "F1 2002" game.
An XBox version of the game was in development. But due to the bad selling numbers (caused by the huge amount of bugs) and the Shutdown of the Microprose studios the XBox version was never published - although it was nearly finished. At a PR event two months before the release it was possible to play the game on XBox.
At the release time the game contained so many bugs that it was nearly unplayable. This was due to the fact that Infogrames rushed the release because they wanted the game to be release before EAs F1 2002.