Seconded, that game was awesome back in the day and I'd love to play it again.
Wikipedia says it had an add-on with new courses and game modes; I don't think I played that version so that it's another reason to make me want it more.
I saw that also, and am intrigued.
However, with less than 100 votes it's probably not going to be on GOG's list of priorities any time soon...
So vote HIOCTANE, people! =D