Toyota Prius is most fuel-efficient hybrid, while Hyundai Sonata tops as the most fuel-efficient non-hybrid vehicle, in a list compiled by TrueCar.com.

According to TrueCar.com, the top ten list was based on fuel economy and cost of gas, per 15,000 miles driven annually. Of the top 10 hybrids, four
have a combined 40 MPG or better while every vehicle in the top 10 non-hybrids offers a combined 30 MPG or better.

The list only looked at 2011 model vehicles and did not include pure electric vehicles because there is no cost associated with filling up a tank, TrueCar.com says.

Hybrids offer great fuel economy but most don't provide the value consumers are seeking, said Jesse Toprak, Vice President of Industry Trends and Insights at TrueCar.com. If you're looking to save the most amount of money, look at the overall picture from the cost of the vehicle and how much you would spend on fuel to see what vehicle offers the best overall value.

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