Gas Mileage
Bill to give more CAFE credits to light-truck makers introduced in Congress
Under the new administration of President Donald Trump, the EPA has reopened comments on its decision to finalize emission rules for 2022 through 2025 vehicles. Meanwhile, the NHTSA—which sets fuel-economy rules that have to correspond to EPA limits on carbon-dioxide emissions—hasn't... read more
2017 Mercedes-Benz E300: gas mileage review
The Mercedes-Benz E-Class luxury sedan is hardly viewed as green, even if it'll soon have a plug-in hybrid version offered in small numbers. But driving the most recent... read more May 9, 2017 by John Voelcker
Lighter, more fuel-efficient cars are safer, study says, ignoring safety rules
It was one of several common tropes used 10 years ago against proposed regulations to boost average fuel economy. "More efficient cars will have to be lighter-weight, and... read more May 8, 2017 by John Voelcker
What's the lowest acceptable gas mileage for a compact SUV? Poll results
We've driven a lot of compact crossover utility vehicles in recent months. It's a hot category in the new-car market, with all light trucks getting better fuel economy than... read more May 8, 2017 by John Voelcker
Extra fuel used if 2022-2025 CAFE rules delayed would be low: here's the math
Barbie never said "Math is hard!" The talking doll did, notoriously, say "Math class is tough!" in 1989, sparking a media firestorm over gender roles in childrens' toys and... read more May 2, 2017 by John Voelcker
Six things to know about new hybrid cars (if you haven't paid much attention lately)
For the past few years, plug-in electric cars have gotten more publicity than their small share of the market deserved. That's exactly what had happened to hybrids a decade... read more May 1, 2017 by John Voelcker
Automakers seek deal to delay EPA's 2022-2025 emission rules
Despite some alarmist reporting, President Donald Trump hasn't abolished the EPA's vehicle emission limits. Nor has he wiped out corporate average fuel-economy rules, set by... read more April 14, 2017 by John Voelcker
Toyota Prius One: stripped-down hybrid added at lower price
It hasn't been the greatest of years for the Toyota Prius hybrid, the Japanese carmaker's flagship product. The fourth generation hybrid hatchback debuted as a 2016 model... read more April 14, 2017 by John Voelcker
2017 Kia Optima Hybrid: gas mileage review of mid-size sedan
The 2017 Kia Optima Hybrid is one of a pair of hybrid mid-size sedans from the Korean maker Hyundai-Kia. It shares its underpinnings, though not a single body panel or... read more April 7, 2017 by John Voelcker
How to curb climate change yourself: drive a more efficient car
Given the current political landscape in Washington, it's not unreasonable to worry about the future of U.S. efforts to combat climate change. The Trump Administration has... read more March 30, 2017 by Stephen Edelstein
Costs to meet fuel-economy standards even lower than EPA says: analysis
The auto industry tends to oppose, viscerally and viciously, all attempts to regulate any aspect of its products or business operations for any reason. With President Trump... read more March 24, 2017 by John Voelcker
Europe's emission limits, small cars far from global mainstream: is this why GM sold Opel?
At the 2017 Geneva auto show, General Motors announced the sale of its entire European operations—comprising factories and the Opel and Vauxhall brands—to PSA... read more March 23, 2017 by Stephen Edelstein
Ignore politicians: lower fuel-economy rules don't create jobs, analyst says
A common refrain among critics of current and future fuel-economy standards is that the need to comply with them produces job cuts in the auto industry. It's a theme picked... read more March 22, 2017 by Stephen Edelstein
2017 hybrid mid-size sedans: all the entries, plus what's due for 2018
The mid-size sedan was once the default for a majority of U.S. car buyers. While the segment's position has been eroded by the rise of crossover utility vehicles of many... read more March 21, 2017 by Stephen Edelstein
2017 Kia Niro: gas mileage review
However you choose to view the 2017 Kia Niro hybrid—Kia says it's a crossover utility, we call it a wagon—it's a good-looking and relatively capacious small car... read more March 17, 2017 by John Voelcker
What Trump did and didn't say in Detroit on EPA emission rules
One of the challenges of today's uber-polarized political environment is that fear and alarmism increasingly overtake the factual realities of an issue. This appears to be... read more March 17, 2017 by John Voelcker
Tesla builds Supercharging "moat" to keep out competition... 
Multi-speed transmissions and turbochargers don't save much... 
Zero emissions vs. "Hybrid": When is a Nissan Leaf not "green?" 
2019 Toyota Prius C preview: $900 price increase, fewer options 
Taking Tesla private, Autopilot testing, Mazda CX-5 diesel... 
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