Fuel Efficiency

Another month has gone by, which means it's time for another round of superb deals for hybrid, electric, and fuel-efficient cars. For September, many of last month's cars hold their place on the list, though incentives have gotten better for some of them. As always, offers listed here reflect the...

Lately, automakers haven't been touting the rising fuel economy of new vehicles, but it has to continue rising to meet reductions in the legal levels of carbon emitted. While major strides in fuel economy have been made over the past five years, the complex engine technologies and other...

Even the automaker lobbying group didn't go this far in their complaints about emission and fuel-economy rules for vehicles in the 2022 through 2025 model years. When the Obama Administration approved final EPA emission rules for those years, the automakers complained that the comment period had...

The internal combustion engine, now more than 200 years old, will be with us for a long time to come yet. Powering more than 1 billion vehicles on the planet and almost 100 million new ones each year, it is the default way to move vehicles along the world's roads. With its carbon emissions now...

Fuel-economy ratings for cars sold in Europe have long been wildly unrealistic, sometimes more than 30 percent more optimistic than real-world consumption figures. Today, that will change. As of September 1, two new and more stringent testing regimes are to be used for certifying new vehicles going...

We spent a few days with a gasoline-powered 2018 Chevy Equinox back in May, but now we've driven a much rarer version. The 2018 Chevrolet Equinox Diesel will start to arrive at U.S. Chevy dealers within two weeks, the company says. On Wednesday, as part of a comprehensive presentation on the five...

Entrepreneur Paul Elio's concept for a simple three-wheeled car that would cost only $6,800 has now been with us for eight years. During that time, he has shown the car hundreds of times to diverse groups of people, taken tens of thousands of reservations, sold stock in the company, and suggested...

Earlier this month, Japanese automaker Mazda laid out its future powertrain strategy and dropped a massive announcement in the process. In 2019, Mazda will introduce a gasoline-powered Homogeneous Charge Compression Ignition engine, dubbed Skyactiv-X, that the automaker promises will offer huge...

Consumers all over the world, but especially in North America, are buying more crossover utility vehicles and fewer passenger sedans and hatchbacks. The U.S. auto industry makes the bulk of its profits on light trucks, which include crossovers, pickup trucks, and even minivans. The Trump...

Those who've lived in New York City since 2001 sometimes choose to avoid the World Trade Center site when possible. The area has largely been rebuilt into a combination of offices, shopping, and the 9/11 Memorial and Museum, with construction on some very tall towers still ongoing. A lunch date...

Times are tough for sedans in general, as buyers swarm into crossover utility vehicles and ignore the passenger cars sitting next to them on the showroom floor. Also, gasoline remains cheap. All of which may add up to tough times for the current Chevrolet Cruze Diesel, the compact sedan to be...

Sometimes, when science and technology issues have economic or political consequences, incorrect or misleading information and analyses can be propagated through the media, leading both decision makers and the public astray. A piece published in April by Forbes, covering the effects of the 2022...

As North America rounds out the final weeks of summer, plenty of discounts and deals remain on fuel-efficient, hybrid, and electric cars. The month of August sees a number of familiar nameplates remain as best buys, while a few newcomers arrive to represent excellent new values. Below are August's...

It's a technology that's been a sort of Holy Grail in the auto industry for at least a couple of decades. Now Mazda, one of the smallest global automakers, plans to introduce it in a radical new engine to be used in a future Mazda vehicle in 2019. It's called homogeneous charge compression...

The small SUV segment has ballooned into a hugely important market for many automakers, as consumers continue to shift from traditional sedans to crossovers and other utility vehicles. The smallest of the expanding array of SUVs on the market offers the flexibility of a hatchback or wagon, combined...

Small Japanese automaker Mazda is in a tough spot. It's been on its own for most of a decade now, after Ford sold its shares in the company, and now Mazda must fund numerous new models all by itself. With global sales of just 1.5 million vehicles, it's one-seventh the size of Toyota or Volkswagen...

The U.S. Department of Transportation said yesterday the NHTSA is preparing to revise corporate average fuel economy requirements for model years 2022 through 2025. The proposed version of those regulations, which was issued by the Obama Administration in 2012, included steady increases for each of...

Not so many years ago, a 1.2-liter engine would only have been found in the U.S. in the smallest and least impressive of subcompact cars. It might have been a 3-cylinder, and certainly wouldn't have had even 100 horsepower. But times change, and engines of that size will soon be found even in the...

Both Mercedes-Benz parent Daimler and Volkswagen Group have approved new plans to retrofit older diesel-powered vehicles with new software at no cost to owners. The largest number of such cars will be in Europe. The news comes amid the latest allegations surrounding German automakers and their...

The iconic Jeep Wrangler is a tough vehicle to make fuel-efficient. Its separate frame and body add weight, and it has all the wind-cheating grace of a small municipal hospital. The Wrangler SUV only gets redesigned every 10 years or so, so each new generation is a big deal to Jeep fans. DON'T...