French carmaker PSA Peugeot Citroen unveiled Tuesday a petrol hybrid engine that stores energy using compressed air which it hopes will be a game-changing technology to improve energy efficiency.
The Department of Energy's SuperTruck, recently hailed by President Obama as the energy efficient truck of the future, uses technology from DOE's Oak Ridge National Laboratory that leads to improved fuel economy.
A new National Research Council report finds that by the year 2050, the U.S. may be able to reduce petroleum consumption and greenhouse gas emissions by 80 percent for light-duty vehicles—cars and small trucks—via a combination ...
Fuel economy of new vehicles sold in the U.S. backed off its record high last month, but average monthly emissions are now at an all-time low, say researchers at the University of Michigan Transportation Research Institute.
Hybrids aren't just for fuel economy any more. Ferrari and McLaren both on Tuesday unveiled sleek hybrid supercars sculpted from carbon fiber at the Geneva Motor Show.
General Motors is trying to take the Chevrolet Volt's electric technology upscale with a new Cadillac.
US President Barack Obama on Tuesday ordered officials to start setting new fuel efficiency standards for medium and heavy trucks, wielding his executive power in the fight against climate change.
The green car market is only inching along in the United States, hampered by high comparative costs and limited ranges on pure electric vehicles, but automakers remain confident their time will come.