The Trump administration's proposal to roll back Biden-era vehicle fuel-efficiency standards may save automakers in the U.S.

Transportation Secretary claims that relaxed fuel-consumption regulation for cars will encourage manufacturers to build more station wagons. We have our doubts.

But the chief executive, Mary Barra, added that the jury was still out on whether electric vehicles would become a major seller in the United States.

Although not considered zero-emission technology by the UK government, many industry experts believe hydrogen has a key role ...