Fuel Efficiency

The governors of 23 states plus Puerto Rico have urged the Trump administration to reconsider its proposal to freeze the federal fuel efficiency standards through 2026

A wide range of Hyundai and Kia vehicles, starting with the 2020 Sonata, will be soon be getting engines with a next-generation valve system.

Automakers (17 of them) wrote a letter to President Trump asking for California to be included in his single national standard for revamping fuel economy rules.

Michelin has introduced a prototype airless tire that will soon be tested on a Chevrolet Bolt EV fleet in Michigan.

If the federal government revokes California's waiver allowing it the authority to regulate emissions, the state's agency is making clear it will find a way to keep the polluters out.

If more power, a 226-mile range, and a $39,405 base price—before considering the full $7,500 federal EV tax credit you can still get—collectively seems like the sweet spot for the Leaf, you probably have GM to thank. Nissan has admitted that it never planned to push the Leaf above a...

Given the daily churn of electric-car announcements, major manufacturing investments, and battery supply-chain news, it could be a little hard to understand one reality-check projection: that even in 2030, a solid majority of vehicles sold could still burn fossil fuel. Last week, LMC Automotive, a...

An EPA report released Wednesday shows that cars are getting better gas mileage in response to rising fuel economy standards. Yet a roaring economy and low gas prices have put Americans on a truck-buying spree, and the EPA is working to undermine those standards. According to its annual automotive...

In just one model year, Kia has more than doubled the rated driving range for the Soul EV. The 2020 Kia Soul EV, which is expected to reach dealerships this spring, will go 243 miles on a charge—four more miles than the Kia Niro EV—according to the EPA, in ratings that were released...

It turns out there's more than one way for automakers to meet fuel-economy targets. One is to develop and sell more fuel-efficient cars and trucks. The other—as demonstrated over the years by quite a few automakers—is to pay fuel economy fines to the U.S. Treasury as a course of doing...

Ten years ago this week, in February 2009, Green Car Reports published its first story—one packed with insight regarding the Chevrolet Volt, which was then still nearly two years away. Despite all that could have happened to the Volt in GM’s bankruptcy, it arrived on time and was...

A look under the hood of Mazda’s future includes a patchwork of “what if” possibilities and a series of juggled timelines. Mazda is in a tough spot right now with regulators and in finding its place across many global markets. Part of the issue is that Mazda is considered an...

Considering how much of a commitment Nissan has made to electric vehicles over nearly a decade—mass-producing them on three continents—the lack of any parallel commitment to plug-in hybrid models, or even hybrids, has been baffling. Nissan finally remedied that in 2016, with the...

Former Porsche AG CEO Wendelin Wiedeking, who waged a failed takeover of the Volkswagen Group ten years ago, is reportedly one of the backers of a new venture that, at face value, is making claims that sound very much like those made of what was then the favored tech for VW and Audi: TDI diesel...

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...

As solar cells get more efficient, powerful panels can fit on smaller areas. For those looking to use renewable energy for transportation, that means solar panels can now move from home rooftops used to power car chargers to cars themselves. In Korea on Wednesday, Hyundai and Kia revealed some...

Less than a week after speaking out in favor of a national electric vehicle mandate, and in the shadow of Tesla reporting a profitable quarter, General Motors might be on the verge of announcing a radical change to its plans for future electric vehicles and plug-in hybrids in the U.S. The automaker...

Honda joined General Motors on Friday and called on the EPA to abandon its proposed fuel-economy rollback, asking federal officials to negotiate with states like California to offer a single, comprehensive update to federal fuel-economy standards. Honda filed its comment Friday, the last day for...

It’s been less than five years since Volkswagen produced its limited run of just 250 XL1 plug-in diesel hybrid coupes, of which only 200 were sold to retail buyers. The Volkswagen XL1 has all the makings of an instant collectible, with its combination of low production volume, advanced...

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...