I take it inside the minivan. The rear wheel fits between the two rear seats and the front fork is secured to a homemade mount that sits on the floor near the rear door. The mount is simply a 3/4" X 4" piece of pine that I cut to fit between the sides of the van and has a fork mount screwed into it:
http://www.performancebike.com/shop/...e.cfm?SKU=3702
Works well and very portable and only takes seconds to load an unload.