Fuel Efficiency

Here are the widely available cars only fueled by gasoline that achieve 50 mpg combined or more based on EPA ratings. They all start under $30,000.

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.

Given typical driving patterns, there isn't a single gasoline vehicle you can buy today that, on a national basis, promises to be cleaner than an all-electric one.

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.

Ford, GM, and Stellantis expressed a “shared aspiration” to achieve 40% EVs by 2030, with a framework yet to be worked out in detail.

A number of environmental groups called for higher targets and fewer loopholes in Biden gas mileage rules expected in the next week.

The 2022 Tucson Hybrid drives better than its gas counterpart and offers great value. But the big question is, how efficient is it? We took it on a pair of drives, one highway focused and one through the city, to find out.

The U.S. EPA is reportedly on the verge of revealing a plan for tougher annual efficiency increases that would eventually exceed Obama-era targets.

So-called "superusers" should be a target for the shift to electric vehicles, argues the EV advocacy group Coltura.

Tesla might find another taker for its EU credits, but without FCA's thirsty lineup they'll be a harder sell.

With the NHTSA, it proposes to rescind rules that took away California's authority to set its own emissions framework and to mandate EVs.

The EPA expressed "concerns" about the process used to create the Trump-era rules that relaxed fuel-efficiency targets.

The Biden EPA chief plans to restore stricter auto-emissions standards—and perhaps lay out targets for going all-electric.

Such a thermal efficiency, only claimed previously by racing engines, isn't yet offered in any production model.