Jamie, nice shot. In my opinion, this could be a much more interesting picture if you crop up, to the point of giving up the road and concentrating on the mountain and sky which really are the main subject here. Beyond that, a polarizing filter would work wonders on the sky.
I really like this shot - the only change I can recommend is to crop out the top of the windshield from it. Other than that, great lines, color, love the shadows.