Fuel Efficiency

The 2014 Mitsubishi Mirage is due to arrive in U.S. dealers this fall, but until now we've only known the EPA gas mileage of the CVT automatic variant. At 37 mpg city, 44 highway and 40 mpg combined it's one of the most efficient subcompacts on the market, and thanks to Mitsubishi Canada announcing...

Say the word "hybrid" and then ask drivers, anywhere in the world, to name a car brand. They'll likely say "Toyota," a testimony to that brand's launch of the first Prius in 1997 and its tenacious pursuit of improvement in hybrid-electric powertrain technology since then. Today, Toyota announced it...

The modern automotive business is a funny thing, making bedfellows of the unlikeliest of couples. Ford and General Motors don't collaborate often, but when they do it's usually on a transmission. This tradition continues as both companies announce an agreement to co-develop new 9- and 10-speed...

It seems like fairly recently that Edison2 walked away with the Progressive Insurance Automotive X PRIZE, but it was actually back in 2010. Since then, the company has been hard at work developing the latest version of its Very Light Car (VLC). The name may not be imaginative but it is at least...

It's long been known that Lisa Jackson, the current administrator of the U.S. Environmental Protection Agency, would step down now that President Obama is in his second term. But while Jackson had four years in the spotlight, somewhat less is known about Gina McCarthy, the woman designated to...

Many people imagine that fuel efficiency stops and starts with engine technology and driving technique, but there's a little more to it than that. Making a fuel-efficient vehicle involves a holistic approach that examines every aspect of a car's design and tries to reduce its impact on fuel...

There have been several rumors flying around as to the full details of Ford's new 1.5-liter Ecoboost engine. The first of these relates to how many cylinders the new unit has. Ford's crypic press release didn't make this clear, with no menion of a cylinder count. Road & Track however has heard...

People love their SUVs. You can't move for the things these days, but the good news is they could be getting smaller. An influx of compact SUVs and crossovers in recent years has struck a chord with buyers, and sales have grown at a faster rate than the rest of the industry in the first three...

Volvo doesn't sell any diesel vehicles in the U.S, but if and when it decides to change that it'll certainly have some of the more advanced units on sale. The company's new diesel engine family, launched this fall in Europe, features what Volvo calls 'i-ART' technology to help cut fuel consumption...

The 2013 Hyundai Sonata Hybrid is the third year for the carmaker's first hybrid-electric vehicle. And Hyundai's made some minor updates to the mid-size hybrid sedan that competes head-to-head with the Toyota Camry Hybrid (which pioneered the segment), the Ford Fusion Hybrid, and later this year...

If you're used to driving around in a Prius then average miles per gallon of 24.6 will sound a little poor in comparison. But that's the average economy of all cars, light trucks, minivans and SUVs purchased in the U.S. in March--and it's an all-time high. 24.6 mpg is 0.2 mpg higher than January...

As fuel efficiency standards tighten continuously between now and 2025, buyers will have more powertrain options to chose from. And many have suggested there's a battle coming among smaller gasoline engines, diesels, and hybrids. If so, we hope that buyers will do the research to look at the...

Life can be confusing for those motivated into greener cars with the aim of saving money. With all the options available to today's buyers--more efficient gasoline, diesel, hybrids, plug-in hybrids, electric cars, biofuels and more--it's hard to know what is really best. Throw in the multitude of...

Mitsubishi has unveiled the new 2014 Mirage subcompact at this week's New York Auto Show. Rival for cars like the Ford Fiesta and Chevrolet Sonic, the new Mirage claims impressively high fuel economy figures and high equipment levels, set to make it a tempting option in the subcompact class...

With a raft of new diesel vehicles entering the market this year and next, the question arises: Who exactly will buy them? Based on the results of a survey to be released later this morning, Volkswagen of America suggests that some drivers of gasoline cars are likely to be open to the benefits of...

The 2013 Formula One racing season is already underway--and already causing controversy--but from an engineering standpoint much of the focus is already on 2014. That's because from the start of next season, new engine regulations are set to significantly improve the cars' fuel efficiency, and...

Consider this: The average semi truck is actually quite economical. No, really. A typical long-haul truck averages between 5.5 and 6.5 mpg. But it's also really, really heavy--up to 80,000 pounds, for a fully-loaded trailer. That's around 36 tons, which puts some perspective on how hard each of...

China's ongoing and recent air pollution issues are leading to swift rethinking of the country's transport policy. After several months of choking smog engulfing its major cities, the country has finally imposed strict fuel economy standards in a bid to cut fuel use--and pollution. Reuters reports...

Yes, the green paintwork was a deliberate choice. Not that the Mitsubishi Mirage, widely expected to be unveiled at the New York Auto Show next week, isn't available in any other colors. But we couldn't pass down an opportunity to drive one which matches with the site's green focus. The new Mirage...

Kia has retained its talent for styling and nose for value with its 2014 Kia Forte Sedan, but the same can't be said of the new car's fuel efficiency. The company has released pricing details for the new sedan, which slots in as the lowest-priced car in the segment, starting at $15,900--excluding a...