"A lot of people in the car industry - and this is a seachange since the 1990s - have come to see dependence on gasoline as the growth bottleneck in the industry's future. They think that the real constraint on the ability to grow the car market will be dependence on a fuel that causes global warming, that puts money in the pockets of dictators, that has enormous price volatility and so forth. So they want to get off gasoline, because they now see it as a limit to their future prospects." - Jonathan Rauch, in an interview with Russ Roberts on EconTalk discussing the Chevy Volt