Ernst Lieb

Governments around the world are bowing to public pressure to reduce the levels of greenhouse gases their respective countries produce, and more often than not, the first sector they look at is the auto industry. Here in the U.S. the government has imposed a tough 35.5 mpg fleet-wide fuel economy standard for 2016 (42 mpg for cars and 26 mpg for light trucks), while in Europe the government wants to put a limit on CO2 levels--something that could have disastrous effects for luxury automakers like Mercedes-Benz, which typically build big and powerful cars. To help meet these new fuel economy...