Are there any night time tracks? Under the lights? Is it that hard to change the sky box and lighting? Just wondering. Would LOVE a night time JS7 or supercross tracks.
The only one I know of is Nevada 18. Turn the weather to overcast or cloudy and the lights will be on with a dark sky
Night tracks aren't technically possible done the right way (independent light sources) as only one light source is possible and the shadows are baked onto the track. This means you can't have flood lights that actually emit light.
You can do the whole thing with textures, black fog, skydome etc.. but I've tested this in the past and there are catches to lots of key parts of the process that make it just not worth it without the ability to add independent light sources.
For me anyway.. You can always chuck a night skydome in a track folder and adjust the ambient settings to give you dull lighting and black fog but it will look like a bad mobile game.