You guys have a really great discussion going on here! Thought I would share my two cents...I like the storefront a lot, but I think the tag line brings in too much green. Maybe try changing the "YOU" to the terra-cotta color of your pinstripe, or vice versa! and like someone else suggested...use title case for the web address, or small spaces between the upper case letters
And as far as the van....I love the backgound colors & images on your website and think you should use that same look in your wrap. Along with the green band across the bottom, maybe arching up towards the back a bit.