Mayor Boris Johnson says the new plug-in hybrids, which look like traditional cabs, are "beautiful" and "a masterpiece."
It's a growing dilemma--conventional cars are getting so good it's hard to make the more expensive hybrid pencil out.
Automakers talk about 2020, but that's just an interim date--the car might take over sometimes, but you'll still be sitting in the driver's seat, paying attention. Fifteen years later, now we're talking about sitting in the back with your iPad.
The companies couldn't be more different, but both are working on tiny urban cars that could be completely autonomous. And the technology is here today.
Reno operates a 25-cent downtown loop, joining cities like Louisville, Stockton, Worcester and San Antonio in advocating plug-in corridors. Bus maker Proterra points to its forthcoming "Telsa Model S of buses" as evidence that its going to conquer the world sooner rather than later.