The main thing here is the reflection.
-for anyone interested:-
The
basic idea to remember when creating a reflection on a flat surface, is that the "object" is mirrored, as in a flipped duplicate:
Imagine an exact copy of the 3d car upside down, underneath the actual car, where all the points of contact with the surface (which is the bottom of the tires in this case) are touching the equivalent point on the "real car".
This is difficult to create from a 2d image, you will need recreate what isn't captured in the original image and warp the reflection until everything is the correct distance from the surface. Especially with a low angle of reflection it all becomes even more difficult (the angle between the camera, the point on the reflecting surface and the direction that is perpendicular to the surface at that point)
You will be able to see under the car to some extent (including under areas like around the grill under the front number plate) unfortunately making the above image almost impossible to create a nice reflection with.
So, very basically, to make it easier to get the reflection right, don't look down on the car soo much.
Also remember, reflections don't have any perspective other than what the "real object" does.