Now for some feedback try to make the car spin slower. That's it. If you want to make the reveal a bit more pleasing when the car is revealed make the lights flicker a bit. There is a bunch of ways to improve on this, but it looks very good for a first attempt.
@dedted there is nothing wrong with his materials (really-really minor). It is that there aren't much environment to reflect and thus the material looks somewhat off when it really is just a lack of reflections. A good example is the beautiful smooth curves on the bonnet of the car. It is only visible in the reflection of the light above.
Anycase you can find fault with professional's work too, so I'm never too worried about small imperfections the first time around. The most of what I and the rest of the guys said you most likely already know. I hope to see more work from you
I think the focus here is not really the realism, but more like on the car itself. I remember that this car is actually an original work of @dogtorque. So, the render looks really decent just for a showcase.
I like it, great model. It always amuses me when people talk about "photo realistic", what about life realistic - when was the last time anyone raced a car that reflected every aspect of the environment and was polished to a mirror finish, or your eyes saw lens flare etc.