Game about vehicles is sandbox physics construction game, focus on building and testing land, sea and air vehicles. Vehicles can be any shape, each modules can be fully customisable and it changing physics behaviour.
I'm working on new GUI for whole game, it not only look better but also don't affect to game performance like previous one.
I would suggest the use of NGUI, to make nicer interface (versus the default Unity GUI), and would also be easier to develop it.
But I'm finding this interface very beautiful, congratulations, I'm dying to test it.
This is NGUI (v2.7), in combination with nice font, whole GUI be better.