In my honest opinion, I don't think changing the track would do much difference to help make the ride look more visually appealing.
Each individual car is a different bright colour, which makes it very hard to have a cohesive colour scheme. If they have a colour scheme based on the red lead car, while it would match the green car, all the others would still clash. Same goes for all the other cars as well.
The best possible scenario would be going for a white or silver colour scheme for the track, but even then I don't think it'll be perfect. Actually, I think that summarises the Cyclone/Sidewinder pretty well; it will never be perfect and we're always going to find fault.