You may want to check your window material.... the refraction level seems a bit high to me.
Placement of the car may also need adjusting to follow the background image's prespective more....
Imagine a line on that edge of the road and draw a line of your car's presepective, you can see they are going off different directions.
Otherwise good for a first go.
Ok, here is my first ever attempt to mod an existing lfs car model, scirocco in this case. I call it VWR_custom_blue. I just collected bits here and there and used scaling, moving, rotating and some moving around of vertexes in order to attach/fit the extra parts in the car's body (spoilers, wheels, wing, etc). There are a lot of imperfections since my knowledge is rather primitive, but if you are not picky you'll hopefully like it.
The first ss has Oz Racing rims and the other two have RoJa.