If in fact it is a car at all- which is less than a certainty- the most likely explanation is that it is sitting mounted off the ground on a post or a pole for some weird reason. I have seen all kinds of weird things on posts used as signs to promote roadside businesses.
I vote that it is a car on a stick.
Mayflower Moving used to have a moving van on stilts as their sign in Parkville, Maryland. I think I see some type of poles holding the "car" up in the air, so I agree with you - probably a weird kind of sign.