Fuel Efficiency

By harnessing the wind, a new car-carrier design will have a smaller carbon footprint than combustion or battery-electric ships.

Americans anticipate they'll drive more after the pandemic than they did before it—adding urgency to the need for more EVs and clean vehicles.

The Environmental Protection Agency might be led by one by a champion of electric cars, potentially replacing a former coal lobbyist.

A report reminds us that climate change is not a new idea for automakers—even if their electric-car plans are.

GM, Toyota, and FCA were served petitions this week from environmental and consumer groups aiming to stop their fight against tighter California emissions rules.

At least five automakers have negotiated deals with the California Air Resources Board to adhere to stricter emissions standards.

A rare investigation from the EPA's federal watchdog will be conducted over the administration's hasty rulemaking that contradicted its own earlier findings.

The lowest-priced, most fuel-efficient models from Toyota and Honda—two brands that built their reputation on small cars—have been dropped.

Biden would also propose new fuel economy standards that go beyond what was in place during the Obama administration.

The RAV4 Prime offers more electric range than the Ford Escape Plug-In Hybrid and Mitsubishi Outlander Plug-In Hybrid.

The new Sonata Hybrid costs more than the outgoing version, and more than its rivals.

The EPA might give automakers another big break on fuel economy and emissions—in addition to the one they just received in CAFE requirements.

Real driving emissions ratings should be the start of any incentive program aimed at spurring sales, amid a pandemic with connections to air quality.

Car buyers see mileage as an important piece of vehicle selection—with or without the low gas prices.

GM owners could be less likely to buy another product from the automaker because of its position to squash California's emissions rights.

Pickups trucks continue to lag other segments of the market in terms of efficiency improvements. When will they catch up?

With Honda's two-motor hybrid system, the 2021 Insight hits a high in city driving and is shaping up to be the highest mileage sedan without a charge port.

Although Fiat Chrysler sold a higher rate of hybrid vehicles than any other automaker, it came up last in fleet fuel economy. How'd that happen?

Some traditional internal-combustion components, like transmissions, could use a rethink yet—with more smarts, not more gears.

The Model S Long Range Plus nudges even closer to the 400 miles CEO Elon Musk has suggested is in the near future.