The automotive industry is going through a period of significant change, with the transition from fossil fuel-powered vehicles to electric and hybrid ones.
In the U.K., for example, uptake of electric cars has risen rapidly: the registration of totally electric cars in September 2014 rose by over 180 percent compared to September 2013, according to the Society of Motor Manufacturers and Traders.
For those in the burgeoning electric car industry, the days of gas-guzzlers are numbered. "I think people will look back on this era in the same way we look back on the steam engine," Elon Musk, Founder and CEO of Tesla Motors, has said. "It's quaint and we should have a few of them around in the museum, but it's not how people will drive," Musk added.
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The race to manufacture electric cars and provide a viable, extensive charging network for them, has begun. "The battle for [the] electrification of cars is far from finished," Carlos Ghosn, Chairman and CEO of Renault, told CNBC's Energy Future.
The battle might not be over, but the question of how to turn the electric vehicle industry into a profitable concern remains as of yet unanswered.
"Many of us in the EV field are scratching our heads wondering how any of these business models are going to work," Bradley Berman, a writer and researcher on electric cars and green transport, said. "When you start to do the numbers, it just doesn't seem like there's enough there," Berman added.