The long-anticipated Chevrolet Volt, General Motors' electric car, will cost $41,000, the company announced Tuesday, leaving consumers to decide whether its environmental appeal is worth a price far above that of similarly sized conventional autos. Electric-car technology has been around for years, but the high cost to make the vehicles has prevented automakers from producing them for the mass market. The price announcements for the Volt and its electric rival, the Nissan Leaf, have been highly anticipated as a result. Nissan, the only other major manufacturer expected to bring such a vehicle to market this year, said the Leaf will...