I was wondering the same thing,

I think he means the sky (set to black at night).

I think the answer is no, you can only have one sky set at anyone time regardles of time of day, it would be kanda cool though.

Even changing the colour scheme setting to the alternate colour would not change the sky I think. (be nice if it did).

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.