#1 with get it centered and balanced, or get it far enough NOT centered and balanced that it doesn't look like it should have been.
#2 control the location - the stuff on the right is distracting, and I'd rather have moody sky especially for this fisheye composition. The boxes on the left are kinda in the way too.
Those two would improve the shot you took.
Now #3 is just my taste... but I think you need something besides "just a car"... somethign should be happening... a cat walking across the hood looking at the you, a face in the windshield or reflected in the headlights, or something else. when faced with something you could pretty much shoot any time any place, I try to find something new, different, or unexpected to add to it if at all possible.