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When it was first announced that the 5.0-liter engine was making a return to the 2011 Ford Mustang, none of us here at Autoblog were really that concerned with the fuel economy. We were all about the horsepower, and at 412 ponies underneath the hood, the 5.0 doesn't disappoint. Ford, however, was thinking about appearances and earth-hugging as well, and managed to make the 2011 Mustang even more efficient than the 2010 model despite all that extra extra power. According to the numbers released today, the new Mustang GT gets 17 miles-per-gallon city and 26 mpg highway with the six-speed manual and 18/25 mpg with the six-speed automatic.

These numbers are not only a huge improvement from the 2010 Mustang with the 4.6-liter V8 (15/23 mpg w/manual, 15/22 mpg w/automatic), but they also best the figures achieved by the Chevrolet Camaro SS - 16/24 mpg when equipped with a manual and 16/25 mpg with the automatic. As reported earlier, the 2011 Mustang V6 claims top honors against its Camaro counterpart as well with an impressive 19/31 mpg in six-speed automatic form.

So what accounts for the improved fuel economy despite the increase in displacement and horsepower? According to Ford, having an extra gear in the car's transmissions play a large role in addition to the Twin Independent Variable Camshaft Timing (Ti-VCT) that can quickly adjust the intake and exhaust valves. Read more about the Mustang's powertrain improvements for 2011 after the break.

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2011 Ford Mustang GT rocks out with 412 horsepower, 26 mpg highway — Autoblog