it's good but it doesn't sit in the plate.
Knock some of the saturation out of the image, your purple is toooo purple, and your blacks are veeery black adjust your levels a bit. Also somethings like the tyres etc don't have enough spec highlighting you need to adjust that as well in the render.
It's getting there but you've got some work still to do 

Alan
Technical Director - Framestore
Currently working on: Your Highness
IMDB