Mercedes-Benz of Fort Wayne

Mercedes-Benz has developed a B-class electric-fuel (EF) vehicle. And to prove its technical acuity, it's planning to drive the car around the world in 125 days. In total, the journey will cover 14 countries on four continents and run through portions of the United States.

The F-cell is powered by electricity generated by an onboard hydrogen fuel-cell stack and stored in a lithium-ion battery pack. The electric motor produces 134 horsepower (hp) and 215?

In the U.S., Mercedes-Benz currently offers diesel vehicles in its E-, M-, GL-, and R-class models. And, they have an S-class on the way. Powered by the same 3.0-liter turbo-diesel V-6 engine as the company's other American diesel models, the new S350 BlueTec will be offered exclusively with 4Matic all-wheel drive; and it's expected to arrive this fall.

Mercedes-Benz's plan to introduce more diesels into the U.S. market doesn…