Except for the nameplates, the two models of subcompact cars that roll off the assembly line at the huge General Motors-Toyota plant in Fremont, Calif., are virtually identical, right down to the dipsticks and spark plugs.

But under the “corporate average fuel efficiency” rules – the standards mandating fuel-efficiency forcars and trucks sold in the United [...]

Motoring into the future.

The war in the Persian Gulf has heightened the urgency of finding alternatives to gasoline

Operation Desert Storm has underscored in the most dramatic way possible America’s continued dependence on imported oil. But one fact that remains poorly appreciated is that the only crucial energy-supply problem facing the country today is the [...]