sentences:  Deliveries in the United States began in June 2014.The first units of the Audi A3 Sportback e-tron, Volkswagen Golf GTE and Mercedes-Benz S 500 Plug-in Hybrid were registered in Germany in August 2014.
  , over 247,700 plug-in hybrids had been sold worldwide since 2008.The leading market was the United States, with about 140,000 plug-in hybrids sold, followed by Japan with about 35,600 units, and the Netherlands with 34,362 plug-in hybrids registered.