Welcome to autemo dude!

Not a bad looking chop - a very cool idea! Something totally different from everything else I've seen!
As for the rest of it, it's not a bad attempt - the colour combo works well, and the simple mods to things like the wheels are nice touches
However, a few areas to improve on:
- The selections seem quite messy, and have clear corners, a problem with the polygonal lasso tool. Try using the pen tool, it lets you create smooth flowing curves. Here's a tutorial I've dug up (courtesy of Zero) - it's not the best but hopefully it will give you a general idea http://fc08.deviantart.net/fs70/f/2010/036/1/1/Pen_Tool_Tutorial_by_Zer0Gfx.jpg
- New van conversion seems a bit low in quality - make sure your donor parts are a sharp and noise free in a high resolution
So yeh - concentrate on the quality of those selections! Keep it up
