Ha! This is a nice find. Compositionally, it feels like it could have been tilted more, (on purpose, I'm not saying that it is crooked or anything), to balance it.
Nice catch.. and I'm sure you can make it better.. Crop it up with an angle.. get rid of the harsh light from the sun..and experiment with the colours a bit. Make the contrast between the diff cars more by either burning a but and put a nice black border to complement it all.. I make that sound so easy don't I...:)