I couldn't figure out the best forum for this, but figured this was the best place for a small RV. http://www.nydailynews.com/autos/mini-getaway-mini-debuts-world-smallest-luxury-camper-article-1....
I was camping at Oceanside (Ca.) Harbor last weekend and there was a couple of surfers that had a similar setup on their Toyota Land Cruiser. That was legal there. A tent would not be allowed.