Fuel Economy

The tire maker Sumitomo has announced a tire concept that generates energy as it rolls down the road.

Ford, Volkswagen, BMW, and Honda have presented a plan with California, to raise fuel economy toward a target of 50 mpg with a single national fleet.

U.S. vehicle miles traveled figures are up so far in 2019, which could put new scrutiny on the EPA's push to relax emissions and mpg rules.

Ford confessed issues with its emissions certification process that may have resulted in more pollution than suggested by test results.

With electric pickup trucks from Ford, GM, and others—including newcomers like Rivian—looking likely to arrive in the next few years, the truck field could be on the verge of a clean, quiet, tailpipe-emissions-free shakeup. That said, you wouldn’t know this segment as being poised...

If the goal of the Green New Deal proposed by Democrats in Congress is to get people talking about a transition to renewable energy, then it looks to be gaining traction. The Senate generated controversy on both sides of the aisle by proposing to hold a token vote on the proposal. Studies have...

Last week the U.S. EPA released final fuel economy numbers for the 2020 Toyota Corolla lineup. They include a confirmation of what Toyota had claimed when it introduced the lineup last fall: that the Corolla Hybrid will carry an EPA combined rating of more than 50 mpg. The 2020 Toyota Corolla...

Now that the government has reopened after a 35-day shutdown, EPA employees are going back to work facing a backlog. Toward the end of the shutdown last week, executives at all three major Detroit automakers expressed concern about certification delays that could affect new models they plan to...

Until all cars can become electric, it makes sense to support making internal-combustion passenger cars as fuel-efficient as possible. It makes even more sense for popular, thirsty large pickups, where each mpg improvement can save a lot more gallons of gas. Unfortunately, some of the latest...

Electrify America gets plans approved to build more fast chargers in California. A new study shows what the Trump administration is missing about how fuel-economy standards affect vehicle affordability. And we have results from our last Twitter poll and a new poll for you to try. All this and more...

Mazda has revealed its 2019 Mazda 3 compact car, in new-generation form, at the 2018 LA Auto Show. It’s not surprising, given the brand’s go-it-alone strategy this decade, that the new ‘3’ appears to take a different path than key global compact-car rivals in nearly every...

The 2019 Toyota RAV4 Hybrid gets better fuel economy than any other SUV without a plug. We take a look at the benefits of short-range plug-in hybrids. Our readers weigh in on why they haven't yet bought a Tesla Model 3. And Colorado joins up with California emissions standards. All this and more on...

The redesigned 2020 Toyota Corolla sedan will soon spawn a hybrid variant, the first gasoline-electric version of the automaker's popular compact car. Toyota made the announcement Thursday as it unveiled the Corolla sedan at simultaneous events in California and China, underscoring the model's...

Turbocharging has mostly not lived up to its billing of being the savior of internal-combustion engine technology. Earlier this decade, facing increasing fuel economy requirements, automakers rushed to boost fuel economy by adding turbochargers to lots of small engines. The problem is, many of them...

The term “hail Mary” might be appropriate for what General Motors, led by chief executive officer Mary Barra, is attempting at this stage of the federal government’s dialog on fuel efficiency and electric vehicles. GM is launching an effort to propose a 50-state solution for...

One of the best ways to get people to buy green cars is the same way automakers get consumers to buy any car—by making deals. Looking at October sales, among plug in cars other than Teslas, the bestsellers were those that offer the best deals from month to month. This month, many of the same...

It's not that the Trump administration doesn't believe in climate change. It just doesn't want to do anything about it. In a 500-page draft environmental impact statement concerning the EPA's and NHTSA's joint proposal to roll back fuel-economy and emissions regulations, the NHTSA reports that it...

Elio Motors, which has been struggling since 2009 to build its own ultra-cheap, small, fuel-efficient, three-wheeled car, announced Thursday that it will source an engine from a major automaker. Previously, the company planned to build its own 3-cylinder engine with up to 55 horsepower for its...

That sound you hear isn’t the 2019 Honda Insight’s hybrid powertrain whirring along. It’s the undertaker coming for the vaunted Honda Civic nameplate. The 2019 Insight isn’t just a better hybrid, it’s a better compact car. I spent a week moseying around in an Insight...

Labor Day is one of the biggest travel weekends for all year, as Americans close out the summer and enjoy a last excursion before heading back to school. That makes it one of the biggest weekends for gas sales too, though nobody wants to spend more than they need to on fuel. If you're making a trip...