Fuel Efficiency

California sets more aggressive emissions standards and electric vehicle targets, and it's joined in doing so by a growing group of states.

The automakers face off versus a coalition of 17 state governments opposing a significant portion of the auto industry and rallying for greater emissions

One in 10 U.S. drivers burn 32% of gasoline used in U.S. light-duty vehicles, and these users burn more gasoline than the bottom 60% of drivers combined.

The Sportage Hybrid has recently been rated at up to 43 mpg—beating the most efficient versions of all its hybrid rivals without a charge port.

Well-timed signals can have a significant impact on emissions—equivalent to the CO2 absorbed by a forest 3.3 times the size of Atlanta, according to Inrix.

Texas and 15 other states, along with ethanol groups, have challenged the EPA's emissions rules under the Biden administration

It's been a long time coming. Enforcement had been delayed after automaker lobbying, triggering a lawsuit from California.

Gas prices are fueling a run on high-mpg models, and to some degree on EVs—and it's exaggerating the supply issues already present this year.

Producers argue that the new rules exceed the EPA's authority because they effectively force automakers to produce electric cars

Environmental groups claim the EPA's proposed standards should do more to encourage deployment of electric trucks.

It stopped buying state vehicles from GM in 2019, when the automaker sided with the Trump administration in a challenge to the state's right to set its own emissions rules.

So much of the responsibility for CO2 reductions is falling on the auto industry. Should more of it rest on the oil industry?

By 2026, under stricter rules now written into rulemaking, the EPA anticipates that just 7% of the new vehicle fleet will have “strong hybrid” powertrains, and EVs and plug-in hybrids combined will make up just 17%.

The first version of the Hummer EV "electric supertruck" is too portly for EPA range and efficiency ratings. But GM is releasing them anyway.

Even as the Biden administration prepares for tighter fleet fuel economy standards, automakers' bank of credits could stifle innovation and lower the actual mpg average.

All the miles ride-hailing cars travel with only the driver amounts to more overall pollution, congestion, crashes, and noise, a study concludes.

The no-frills, high-mpg, three-wheeled car that's been anticipated for a decade still hasn't arrived, but now the company's decided an electric version comes first.

The NHTSA under President Biden will resume the higher fine schedule for gas-guzzling fleets approved in 2016. Should they be applied retroactively?

EV sales will rise from 3 million in 2020 to 66 million in 2040, Bloomberg projects—and it appears that ICE sales peaked in 2018.

Dementia is the latest health issue potentially tied to the fine particulate emissions produced by vehicle tailpipes.