![U.S. hybrid vehicle market: total sales and market share, 2000-2016 [source: PIRA Energy Group]](http://images.hgmsites.net/tmb/u-s-hybrid-vehicle-market-total-sales-and-market-share-2000-2016-source-pira-energy-group_100590028_t.gif)
What's a "green car"? Is it a hybrid? A zero-emission vehicle? One that plugs in? Or just one that uses less fuel than other cars in its segment? It's a perpetual conundrum, for Green Car Reports among others, but it illustrates one of the longstanding challenges in the field. Will the market for green cars expand as more enter the market, or is... Hybrid market share peaked in 2013, down since then
What's a "green car"? Is it a hybrid? A zero-emission vehicle? One that plugs in? Or just one that uses less fuel than other cars in its segment? It's a perpetual conundrum, for Green Car Reports among others, but it illustrates one of the longstanding challenges in the field. Will the market for green cars expand as more enter the market, or is...