Well obviously I can't comment anything about shadows or stuff like that lol.
The left angel eye looks weird. Like it's pointed towards the camera. The side mirror could be a bit bigger. Not really sure what's that on the door, like an opening. The poly count could be a bit bigger, especially on the roof. And the body could use some thickness to make it more real and not like a piece of paper. Also, the color could be a bit smoother, it's a bit noisy on the darker areas.
I do like the way it looks(needs a bigger wing or a ducktail tho). The wheels are badass
Did you do some Ps work to it? Interior, wheels, oil cooler and such?
If so, nicely done.
Keep them coming, you're doing a hell of a job with them