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512011 Ford Edge gets 19/27 mpg EPA ratings, tops mid-size V6 class

2011 Ford Edge – Click above for high-res image gallery

41Edmunds: long-term, real-world MPG update shows you can get just 26 mpg in a Prius

The good people over at Edmunds Inside Line maintain a fleet of test vehicles for their flogging pleasure. And they've just released the latest fuel economy numbers from their real-world tests. Not surprisingly, the 2004 Toyota Prius came in first place overall averaging 41.0 miles per gallon. What is surprising is that, while the Prius was able to squeeze out 59.3 miles-per-gallon on the high end, the same car also returned 26.7 mpg on its worst tank. What on earth do you have to do to a Prius

AddComparo proves diesels are much thriftier than Honda CR-Z hybrid

2011 Euro-Spec Honda CR-Z – Click above for high-res image gallery

45Report: Ford Fusion Hybrid pays off quickest

2010 Ford Fusion – Click above for to enlarge

AddReport: Ford Fusion Hybrid pays off quickest

2010 Ford Fusion – Click above for hi-res image

AddReport: Fuel economy for new vehicles up 12 percent since 2005

With strict CAFE standards set at 34.1 miles per gallon by 2016, automakers have a long, tough road ahead of them. If you compare recent fuel economy increases over the past five years, the task that lies ahead is downright daunting.

AddNew Federal CAFE standards officially released, 34.1 mpg by 2016

We knew it was coming. Today, the National Highway Traffic Safety Administration and the Environmental Protection Agency jointly released new Federal CAFE fuel mileage and greenhouse gas emissions requirements that will cover the 2012 through 2016 model years. The estimated fleet-wide fuel economy standard has been set at 34.1 miles per gallon by 2016, though improvements in air conditioning systems will bring that number up to around 35 mpg. That equals a standard of roughly 250 grams of carbon

Add2011 Ford Mustang V6 gets 31 mpg highway, first ever for 300+hp

2011 Ford Mustang V6 - Click above for high res image gallery

AddFord Focus RS tops 32 mpg (US) in UK MPG marathon

Ford Focus RS - click above for high-res image gallery

AddREPORT: EPA planning to address outlandish fuel economy claims of electric cars

The EPA is aware that range-extended electric vehicles can game the current fuel economy test to deliver mileage estimates way up in the stratosphere. It makes for impressive advertising, like General Motors' touting of the Chevrolet Volt's estimated 230 mpg, but the EPA wants to give a more realistic reflection of the fuel efficiency of these types of cars, and it's not alone.

38REPORT: EPA planning to address outlandish fuel economy claims of electric cars

The EPA is aware that range-extended electric vehicles can game the current fuel economy test to deliver mileage estimates way up in the stratosphere. It makes for impressive advertising, like General Motors' touting of the Chevrolet Volt's estimated 230 mpg, but the EPA wants to give a more realistic reflection of the fuel efficiency of these types of cars, and it's not alone.

AddAuto X Prize throws water on GM's 230 mpg claim, offers mpge calculator

With all of the attention being paid to the 230 mpg number that the Chevy Volt will apparently be granted by the EPA, the Automotive X Prize thought it was time to weigh in on the subject of calculating fuel efficiency for vehicles that use energy sources other than gasoline. They don't like it. Instead, the AXP prefers MPGe, a "rigorous and more neutral measure" of fuel efficiency. The AXP's John Shore walked us through how the long-running competition thinks about MPGe. They've been at it for

AddWhere are the most important MPG increases, at the upper or lower end?

Imagine, if you will, taking a sheet of paper and cutting it in half. Now take one of those halves and cut it in half again. Now keep repeating the process. As you keep cutting, the difference in the size of the subsequent pieces gets progressively smaller. This simple example is a demonstration of why continuing to increase the fuel mileage of a vehicle has less and less impact once you get beyond about 35-40 mpg.

54REPORT: New CAFE standard has 'loopholes big enough to drive an SUV through'

There are miles per gallon... and then there are miles per gallon. How do you tell the difference? One is labeled "CAFE mpg" and the other is labeled "EPA mpg." What's the difference? Well, Edmunds is taking pains to illuminate the large discrepancy that exists between the two figures: the issue, as initially laid out by Edmunds' John O'Dell in 2007, is that CAFE and EPA mileage numbers were initially based on the same formula in 1975. When consumers complained that the number didn't correspond

32Could compressed air lead to markedly smaller engines?

A 1.0-liter two-cylinder that performs like a 3.0 liter V6? On what planet? Researchers at Switzerland's ETH Zurich school of engineering are developing pneumatic hybrid engines that use compressed air to deliver big performance and efficiency from a small package. During deceleration, the engine's pistons are used to compress air, which is diverted through a special valve and into a holding tank. Rather than try to propel the vehicle directly with compressed air, like Guy Negre's hybrid system,

AddMiles per gallon: Overrated?

Sure, there are plenty of things in the automotive world that are overrated. Enough, in fact, to compile a whole list of them, as seen here. Come on, join in... it's fun! For instance, in addition to the small SUVs that already made the list, why not add big SUVs too? Most buyers of the big behemoths rarely use the full capabilities of their rigs and could almost always use a smaller vehicle. What about those rare instances when a monster 'ute is necessary? Rent one. Remember, even if one more g

AddWill putting electricity in your gas tank get you more mpg?

Well, there's no shortage of, um, unusual ideas on ways to increase the miles-per-gallon of the car you already drive. Everything from pills for the tank to Brown's Gas appear on our radar with some regularity, but this idea is a new one. It's called "electrorheology" and it means introducing a bit of electricity into the fuel stream just before the fuel is injected into the combustion chambers. The resulting fuel is then more viscous and therefore burns cleaner. According to an article written

33Prius schmius -- try an Austin-Healey Sprite and 36 mpg

Of course your wallet hurts every time you have to fill the car up. Nevertheless, in these trying times we must always remember the words of Fernando Lamas: it is better to look good than to feel good. Cars That Matter has put together a list of classic automobiles that get anywhere from 21 to 48 mpg, which means you can look good while you save money.

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