the answer is yes,but it can be a pain in the *ss
You will have to adapt all the jams.
Not only the colors of the bitmap but also the height since the max height of a bitmap can't be greater than 256.
I had to do this in my early years of gp3; I still have some older tracks (until 2006) archived.
And there is still one available in this downloadsection. [
www.grandprixgames.org]
I made also a little guide for some other users here; i can sent it if you want.
And if you like to have other tracks, just let me know, but there are no recent tracks made.
Maybe a few guys are working on them at this moment.
bye
Dirk