Not too shabby. The colors of the barn are coming out nicely but the car is bit over saturated IMO.
Overall I would give it a darker look especially for the background. It looks pretty 2-dimensional - by separating the the car from the barn (making the barn surrounding darker) you might get a bit more sense of depth.
Composition is also a question of taste. I'd preferred in portrait rather than landscape.
Usually, I'd say that the over-saturation of the whole photo would look horrible, but you've really managed to pull it off with this scene; I think it is reminiscent of the kind of photo that would be taken when the car was launched (or maybe I'm talking rubbish). Either way, I love the effect, nice job!