SPARKS: Nissan is supplying New York City with fuel-efficient cabs, including six electric cars for testing, but acknowledged uncertainties about charging standards for electric vehicles.
WHAT'S THE CHARGE? The debate centers on whether fast-charging stations, where the cars plug in for power, will adopt Nissan's CHAdeMo system or one called Combo backed by General Motors Co. and European automakers. They use different plugs and aren't compatible.
STREET SMART: Nissan's gas-engine NV200 vehicle is set to join New York City's taxi fleet in October 2013. Six Leaf electric vehicles will be part of a pilot program this year.