Thanks for the compliments, guys! I'm really happy you like it so much, especially since it's only my second project. The only thing I plan on adding at the moment is hand on wheel-support, since I've never liked CVS's GUI system.
I've done some modeling work the past week, and this is what it looks like now:



It might not look like a lot is different, but there's more than what meets the eye. Here's a breakdown of what I've changed:
- Shifted back and shortened the cab a little
- Moved the entire rear end forward
- Shortened the bonnet and moved the front wheels forward
- Remodeled the front and rear bumpers
- Enlarged the taillights
- Flattened the bonnet scoop
Right now I'm planning on moving the cab a bit further backward to get rid of some of the space between the B-pillar and the rear wheel arch, but other than that I think the proportions are done. Next I'm going to start working on the interior, and then it's off into the game!
Oh and before I go off, here's a little treat for you (if your browser supports animated PNGs):
http://imgur.com/Yt796Vr