I nominate SedanKamm. If you have interest in aerodynamic trailers, my buddy and I have built a couple. One actually improved the fuel efficiency of a Ford E150 on the highway, the other minimally impacted the FE of a Prius on the highway (but was designed to add cargo volume more than anything). Impressive projects you won't find on here. I would have to see if my friend would release pictures of the van/trailer. He had plans at one time, no idea where that stands today.
http://ecomodder.com/forum/showthrea...-ii-13037.html