BMW’s new hydrogen-powered luxury sedan is about as environmentally-friendly as a diesel truck. Spiegel reports:

The new car caters to the pleasing fantasy of customers spoiled by high-horsepower engines: That they can conform to ecological standards without making any sacrifices, burning "clean" fuel to their heart’s content. Advertising images display the Hydrogen 7 against a backdrop of wind turbines and solar panels. But the image is one of deceit. Because the hydrogen dispensed at the new filling station is generated primarily from petroleum and natural gas, the new car puts about as much strain on the environment as a heavy truck with a diesel engine.