The main idea was, to build a very agressive surreal looking futuristic car - like every little boy wants to have :). One thing, that could help very much to give the whole project a realistic touch, is to take a favourite car manufactur - like BMW in that case - and look for the design line that you can find in all the current car products. If you have an idea what BMW is - and what the modern BMWs are looking like - you know the typical form of the front with that cat-like lights, the bulge of the engine bonnet and of course those renal formed air inlets or the BMW logo in the middle

Source: Current.com  & 3dhifi.com