Thought I would reference the Porsche 918 "spy photos" released by Porsche and do something of what I think something closer to production might look like. Mostly involved changing the black and white colour scheme to red. The headlights will most likely change - I referenced what they had in the spy photo, but they're probably temporary units. I added some blueish Xenon type headlights and proper LED-like turn signals (referenced the Carrera GT for the look).
Do you just use gradients, blends and transparency modes?
The details on the Porsche logo/badge are outstanding. I found it very hard to render them properly without getting a pixelated mess.
Do you have an idea of how much time have you spent working on it?