I assume you want suggestions on how to make your composition better and praise on how you've done so far.
The design is unique (at least to me). The modeling is smooth. I'd have to see a wireframe but the mesh looks efficient. The camera placement is dynamic.
A lot of image space is taken up by the tail of the car - which is not lit. This draws your eye right-to-left rather than left-to-right like most western art should. Put the (white) Fill light on the right pointing toward the car's back then put the (blue) Rim light to the extreme left and top.
Anybody you show this model to would be impressed with your effort. Now, you probably want to use a Sky dome and an asphalt roadway to make the environment enhance the beauty of the car. Make a movie of the car rotating, and maybe have the car doors opening for some dynamicism.
Ya thx for the comment, But i was in a hurry and this is a test. I could have done a better job but the car is only half done the other side is empty. If u dont mind post me the plug ins. I use to have skydome but dont know wat happpend to mine.