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6EPA ready for stricter air quality rules with a look at smog

Current Standard Unchanged Since 2008

Like a certain Hobbit, the Environmental Protection Agency (EPA) wants to take a closer look at Smaug. Sorry, smog. The EPA is on a bit of a kick in thinking about cleaner air standards, which makes sense since the winds of change are blowing. Europeans are taking a closer look at diesel emissions and health organizations are understanding just how bad exhausted air can be (think more asthma and cancer).

4EPA: 2014 renewable fuel standards 'significantly delayed'

Biofuel Producers Get Happy, Frustrated

The Environmental Protection Agency (EPA) is not going to decide just yet how much biofuel to add to the national fuel supply in the future. Last year, the EPA said, for the first time ever, that it might reduce the biofuel component in American gas, but is now saying that the 2014 standards rule will be "significantly delayed."

44Why newly independent Ferrari may be forced into fuel-efficient cars [UPDATE]

UPDATE: A previous version of this story referred to Ferrari's 7,000 global sales as approaching the 10,000-unit threshold of the CAFE system. This is incorrect, as only US sales contribute towards CAFE totals. Ferrari also offered clarification on the company's CAFE status within Fiat Chrysler's fleet. The post has been edited to reflect this information.

AddHyundai And Kia Penalized $350 Million For Overstated MPG Claims

"Cheating Is Not Profitable," Attorney General says

Nearly two years after Hyundai and Kia announced they exaggerated fuel economy numbers for several of their most popular models, the two Korean automakers have paid a heavy penalty for the transgressions.

170Hyundai And Kia To Pay US $100M For Overstating MPG

Largest penalty for violation of Clean Air Act in U.S. history

Korean automakers Hyundai and Kia will pay the U.S. government a $100 million penalty to end a two-year investigation into overstated gas mileage claims on about one-third of their models.

43Four groups sue EPA over LA anti-smog plan

CARB, SCAQMD Signed Off On New Rules

The air in Los Angeles is better than it has been in the past, but that isn't stopping four environmental and health groups from suing the EPA to do a better job. Two national groups (the Sierra Club and the Natural Resources Defense Council) are filing the lawsuit with two local groups (Physicians for Social Responsibility-Los Angeles and Communities for a Better Environment) in the Ninth US Circuit Court of Appeals against the EPA's "deficient smog plan," as Earth justice attorney Adrian Marti

442015 VW e-Golf scores 116 MPGe, 83 miles of range from EPA

Puts It At Top Of Compact Class, But Less Efficient Than BMW i3 Or Spark EV

The e-Golf has official EPA ratings of 126 MPGe (city) and 105 (hwy).

63EPA to scrutinize auto fuel economy tests, issue revised guidelines

Following the lowering of estimated fuel economy figures from companies like Ford, Hyundai, Kia and even a handful of Mercedes-Benz sedans in the recent past, the Environmental Protection Agency is cracking down by mandating new mileage testing procedures by the end of the year, after first considering some changes months ago. The improved evaluations should make the numbers that buyers see on the window sticker of a vehicle closer to what they experience in the real world.

6Hellcat no help to Fiat-Chrysler's bottom-of-the-pile mpg average

What, you expected the "fastest muscle car ever" to help fleetwide fuel economy? Nope, don't think that's going to happen. That means Fiat Chrysler will likely to continue to languish at the bottom of the heap when it comes to fleetwide fuel economy among the largest automakers serving the US, especially as the automaker starts to sell its Dodge Challenger SRT Hellcat. A few hundred Fiat 500E electric vehicles aren't going to turn the trend around.

7EPA study proves plug-in vehicles making their mark

Talk about a report both green-car advocates and gearheads can celebrate. The US Environmental Protection Agency (EPA) put out its annual Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends report. And the 148-page study has something for everyone.

16Mercedes-Benz rewarded by EPA for implementing start-stop

The last Mercedes-Benz AMG model I drove was the CLS63 AMG. It had a 5.5-liter, twin-turbocharged V8, 550 horsepower and 590 pound-feet of torque. Oh, and it also had a standard stop-start system and an Eco mode, two features that are kind of silly on a sedan that will hit 60 miles per hour in under four seconds.

48EPA Says New Vehicle Mileage Hits Record 24.1 MPG

Fuel economy is up almost 5 mpg since 2004

Gas mileage for new cars and trucks in the U.S. averaged a record 24.1 miles per gallon last year, but gains in fuel economy are slowing.

56EPA says 24.1-mpg new car average is best-ever

2013 Model Year Was Half-Gallon MPG More Efficient Than 2012

Well done, America. Through some combination of market forces and government regulations and advancing technology, you've managed to buy enough fuel efficient vehicles to raise the overall average for the 2013 model year to 24.1 miles per gallon – that's 0.5 mpg higher than model year 2012. It's also an all time record high.

16New Mini Cooper only just now being delivered due to EPA certification

The Mini brand and its products have typically been a runaway success for BMW, but sales of the retro hatchback dropped a drastic 20.5 percent last month, and have been doing such pretty much all year.

17Mercedes forced to lower MPG ratings on two C300 models *UPDATE

New EPA Labels Are Up To 1 MPG Worse Than Before

*UPDATE: Donna Boland, manager of corporate communications at Mercedes Benz USA, told AutoblogGreen that the sticker change only applied to around 500 C-Class vehicles on dealer lots, since a new C-Class came out in late August. "About 500 are left in the United States, and we've relabeled them," she said.

75Dodge Challenger SRT Hellcat gets 22 mpg

With its crazy 707 horsepower on tap and roughly $60,000 starting price, the 2015 Dodge Challenger SRT Hellcat has been one of the most talked about cars of the summer, maybe even the year. However, there's always been one lingering question about the behemoth that Dodge has waited to answer until now – its fuel economy. The EPA ratings for the muscle car are finally out, and the numbers are actually pretty impressive for a vehicle with this much power.

672015 Ford Mustang fuel economy ratings leaked

Thinking about buying a new Mustang, but want to know what kind of fuel economy it'll get? Well we have our first indication as the pony-car enthusiasts over at Mustang6G.com have gotten a hold of the Monroney window stickers for a few of the new 2015 Mustang models.

280Angry Nissan Leaf Driver may make 'Rolling Coal' illegal in New Jersey

This Is What Happens When You Smoke Out A State Rep

It's always a few bad apples who ruin polluting just for fun for the rest of us. That time-honored American tradition of being rude for laughs, otherwise known as 'rolling coal,' might become illegal in New Jersey, if a Nissan Leaf-driving politician gets his way.

63EPA wants actual road-test results to fix auto fuel economy estimates [w/poll]

The agency thinks the new approach will result in more realistic ratings, especially for hybrids.

3EPA ready to go virtual with ANSYS to create cleaner engines

The Environmental Protection Agency (EPA) is turning to a company whose home base is as old-school Rust Belt as one can get, but the company's specialty's undeniably new-school technology. The EPA has struck a deal with Pittsburgh-based ANSYS to model simulations of internal combustion engines. And while the models will be theoretical, the EPA is shooting for some very real results.

456Rolling Coal: America's political divide reaches the roads [w/videos]

Jason Mendelson was driving his Toyota Prius in the right lane of Interstate 64 near Richmond, Virginia, when a white pickup truck with two protruding smokestacks cut into the lane ahead.

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