The Up! supermini goes on sale in Europe in a few days, but Volkswagen has already been hard at work casting about for ideas to expand beyond the three-door model available at launch. A five-door will go on sale later this year, and VW showed a few Up! concepts last fall at the Frankfurt Motor Show. For Geneva next week, the cute little city car gets four new outfits: Swiss Up!, Winter Up!, X Up!, and Cargo Up!