With economic challenges forecast to continue, it's no wonder consumers are looking to stretch their dollars with every purchase -- cars included.

Automakers are keen to this shift in the market and have embraced the three letters predicted to fuel car sales in 2011: MPG.

However, maintaining a balance between fuel efficiency and sportiness has often been a challenge for car makers, who have generally relied upon modifying existing car models with hybrid engines to blend form, function and fuel frugality.

Not so in 2011. Some of the new car models appearing at dealerships near you represent the most anticipated and attractive crop of mileage-busting roadsters the auto industry has seen in years.

Here are some of the standouts of the cars coming out in 2011; saving the Earth, and some gas money, has never looked so good.

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