We told you a couple weeks back that more Up! variants are on the way, and now we know what's coming soon to an auto show near you. The automaker from Wolfsburg is set to unveil an Up!-based minivan in Tokyo, followed by a plug-in hybrid sedan at Los Angeles. Since the goal of the Up! concept unveiled in Frankfurt is to give VW a low-cost, rear engine, affordable vehicle, both the minivan and plug-in hybrid should carry a meager price tag if they come to production. Both vehicles should also provide terrific fuel economy too, with the plug-in hybrid possibly approaching the lofty 100 mpg mark. We're no experts, but we think there is a market for affordable, 100 mpg vehicles with seating for four.