Combing my Ps1 and Nintendo 64 longplay. There are a few differences between the versions apart from the HUD and graphics. The main ones being that in the checkpoint in one of the N64 races towards the ends has been moved to avoid having to reverse like in the ps1 ver, and in item hoarder levels if you bump into a car holding items in the n64 you instantly collect them while in the ps1 version they fly out everywhere.
TIMESTAMPS
00:00:00 - PS1 longplay
00:53:21 - N64 longplay