I always thought it was consumers who did not create the demand, until I saw this excellent documentary. Consumers are partially guilty, but so are the other major players, including the car companies. But this documentary was made in 2006, and a lot has happened since then. Today I saw a Nissan ad for its hybrids and all-electric. The Prius and Honda Civic Hybrid have been very successful. The end of the documentary, even though it's titled Who Killed the Electric Car, discusses the bright future of electric cars.
Since the federal government took over GM, the company has developed the Chevy Volt, which "is the most fuel-efficient car with an internal combustion engine sold in the United States."