By David Bénard / ETX Studio Xev has brought the new version of the Yoyo, its small electric city car, to the Paris motor show. But what’s really unique about the Italian brand’s strategy is that it plans to develop battery exchange stations, to allow customers to drop off their removable battery unit and pick up a charged one. This type of concept has already been put into place by two-wheeler manufacturers in Asia, but remains essentially unheard of in the automotive sector. Xev has brought the new version of the Yoyo, its small electric city car, to the Paris motor show. But what’s really u…