I'm experimenting with various ideas for track design. I know some people have experimented with Mario Kart styled tracks. I personally have been experimenting with a few of those as well as some Hot Wheels tracks from the Acceleracers movies. I'm curious as to how many Mario Kart tracks have been made. I know of 2 versions of Rainbow Road and I seen on YouTube someone was working on Luigi Circuit from the Wii. I'm also curious as to whether anyone has developed a Hot Wheels mod. And if anyone has had success at adding rain effect to the track. (At least to the track surface) And if anyone knows how to increase to fogging effect, as I've noticed some tracks tend to have more fog than others. And finally I'd like to know if anyone would be interested in trying out my unfinished tracks mentioned above. I'd appreciate the feedback.