In a worst-case scenario of 36, 500 miles per year, you'd still be delivering 29 MPG from these vehicles.
That would come to at least a 10 mpg improvement over the standard 2012 Audi A8.
But it averages a combined 67 mpg and just 83 grams of CO2 per kilometer.
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The BMW averaged the equivalent of about 33 mpg, well short of the car's rated consumption.
Meanwhile, the 1.6-liter Ecoboost with 2WD gets a respectable 33 mpg on the highway.
In the Fusion Hybrid, I managed to achieve an absolute minimum mileage of 38.1 mpg.
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Ford, meanwhile, achieved a breakthrough for mid-sized family cars with its 41-mpg hybrid Fusion.
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It also gets 19 mpg in the city with rear-wheel drive, according to GM.
Though its 37-mpg highway mileage is nice, the Malibu Eco feels a bit sluggish.
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For the full list of luxury wheels that boast 30 mpg or better, click here.
His new PT Cruiser, which the program classifies as an SUV, gets a combined 21 mpg.
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New SUVs and small or medium pickup trucks or vans must get at least 18 mpg.
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The Chevy Sonic and Kia Rio both get a combined 33 mpg as well.
It also posts compelling fuel economy numbers: I was averaging 27 mpg between Raleigh, N.
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Well, I had whole bouquets of kudzu and I never saw anything close to 47 mpg.
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How much would you save by trading for a car that gets 50 mpg?
And Fiesta notches only 1mpg more in highway mileage than Focus, 37mpg to 36 mpg.
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In reality, vehicles running on E85 get 25-30% fewer mpg than their petrol equivalents.
Yet C-Max also gets better fuel economy on the highway: 47 mpg versus 40 mpg.
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With a 54.5-mpg standard looming, car companies have stood that approach on its head.
Overall, during my 104.2-mile trip, I averaged 35.6 mpg, well short of the promised 47 mpg.
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The bar is raised even higher by 2025, when vehicle fleets must average 54.5 mpg.
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Three rivals won a contest to build low-emission, 100-mpg cars that could be mass-produced.
The EPA estimates fuel economy of 18 mpg city, 23 mpg highway and 20 mpg combined.
It got 23 to 24 mpg overall, depending on whether it had a manual or automatic transmission.
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Anyone eager to buy a hybrid for the promise of 50 mpg will have to look elsewhere.
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The EPA estimate for the BMW ActiveHybrid 3 is 28 mpg in combined city and highway driving.
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The 2012 Ford Focus, complete with recycled blue jeans, is expected to receive a 40-mpg highway rating.
This week, the government raised the bar even higher, to an average 54. 5 mpg by 2025.
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The sedan gets a combined city and highway fuel economy rating of 33 mpg, according to fueleconomy.gov.
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