London would do well to dispense with the Concept label right now and just turn these into its next fleet of people carriers. Volkswagen has unveiled the latest in a series of World Taxis it's doing, prettying up London's admittedly iconic black cabs with a sheen of new paint, an all-electric drive, and an infusion of tablet-based infotainment. Based on the Up! city car, the London Taxi Concept has an estimated range of 186 miles and takes an hour to go from zero to an 80 percent charge. It also has a grayscale version of the Union Jack emblazoned on its roof, guess that's just how VW rolls. Sadly, we doubt anyone will be i