Gas Mileage

2017 Audi A4 Ultra: 31-mpg version of luxury sedan

2017 Audi A4 Ultra: 31-mpg version of luxury sedan

Audi offers efficiency-focused "Ultra" versions of several of its models in Europe that are designed to achieve maximum fuel economy with conventional internal-combustion powertrains. So far, none of these models have been offered for sale in the U.S., though. That's about to change with the... read more

August 19, 2016 by -
Infiniti QX Sport Inspiration concept, 2016 Beijing Auto Show

Infiniti plans VC-T engine with variable compression ratio

While significant attention is being paid to battery-electric and hydrogen fuel-cell powertrains, carmakers are still trying to wring more efficiency out of... read more August 17, 2016 by

Audi eROT electromechanical rotary damping technology

Audi regenerative shock absorber recaptures energy

Regenerative braking is commonly used in hybrids and electric cars to recover energy normally lost as heat during braking. But that isn't the only potential source of energy... read more August 15, 2016 by

2017 Porsche Panamera

2017 Porsche Panamera shows just how complex saving fuel has gotten

The 2017 Porsche Panamera was hardly designed to be a "green" car. While it will likely continue to be offered with an optional plug-in hybrid powertrain, the large four-door... read more August 9, 2016 by

U.S. Capitol Building

Battle over CAFE standards begins now: will they change for 2022-2025?

Two weeks ago today, three federal and state agencies jointly released a "Technical Assessment Report" on how well automakers have done thus far in meeting corporate average... read more July 29, 2016 by

2017 Mitsubishi Mirage GT

2017 Mitsubishi Mirage preview

The Mitsubishi Mirage has been an unexpected sales success for its Japanese maker. Its sales have remained strong even as those of other subcompacts and minicars declined in... read more July 26, 2016 by

Gas pump

EPA: 2025 target of 54.5 mpg may not be met; SUVs, trucks, cheap gas to blame

A pair of U.S. federal agencies said yesterday that while automakers had complied with the first five years of stricter fuel-efficiency laws, the industry seemed unlikely to... read more July 19, 2016 by

2017 Peugeot 3008

Europe plans far tighter emission caps for cars, vans after 2021: report

The current set of European Union emissions standards for cars extends to 2021, but regulators are apparently planning a new round of standards to follow. These new standards... read more July 18, 2016 by

2016 Chevrolet Spark, 2015 New York Auto Show

2016 Chevrolet Spark preview

The 2016 Chevrolet Spark is a slightly larger, better equipped, and more stylish version of the smallest Chevy in brand's lineup. It succeeds a model whose unexpected sales... read more July 11, 2016 by

2017 Chevrolet Volt

Best deals on hybrid, electric, fuel-efficient cars for July 2016

With the 2017 model year well underway, many green cars are hitting showrooms with a new year designation and perhaps some updates. But while these models may be brand new... read more July 11, 2016 by

2017 Hyundai Elantra Eco road trip, May 2016 - Maryland's welcome center wins "Most Scenic' award

2017 Hyundai Elantra Eco gas mileage road-trip report

Road trips are an integral part of the American myth, with writers from de Toqueville to Jack Kerouac setting out to experience the variety and beauty of the huge country... read more July 8, 2016 by

BMW i8 Mirrorless concept - 2016 Consumer Electronics Show

Japan may beat U.S. to allowing camera-based side mirrors

The first Tesla Model X renderings may have shown unobtrusive camera pods in place of side-view mirrors, but production models have conventional mirrors. That's because Tesla... read more July 8, 2016 by

2015 Peugeot 308 GTI

Peugeot admits real-world gas mileage is far lower than ratings

PSA Peugeot Citroën has become the first carmaker to admit that its published fuel-economy ratings simply do not match up with reality. The announcement comes in the... read more July 7, 2016 by

Eiffel Tower in Paris, France (photo by Rijin, via Wikimedia Commons)

Paris weekday ban on pre-1997 cars takes effect, historic cars excepted

Beginning this week, drivers will not be able to take older cars into the center of Paris on weekdays. The ban encompasses most cars made before 1997 and motorcycles made... read more July 5, 2016 by

Elio E1A test vehicle, June 2016

Golly, Elio Motors has built ... a car! One test car, in fact

Increasingly sophisticated computer modeling software has cut the number of prototypes and test cars that carmakers build. But they must still make dozens of vehicles that... read more July 1, 2016 by

2016 Nissan Sentra 1.8 SR in upstate New York, April 2016

2016 Nissan Sentra 1.8 SR CVT gas mileage review

The Nissan Sentra compact sedan has been with us since the 2013 model year, but it received a number of updates and new features this year. Nissan's goal was to keep the... read more June 30, 2016 by


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