Click above image to watch the video after the jump

Fuel efficiency is the big buzz word in marketing circles, and with good reason. 2008's record fuel prices appears to have finally curbed America's appetite for inefficient trucks and SUVs, and customers are demanding less pain at the pump. Several vehicles have been beneficiaries of the green car movement, and our friends over at Inside Line corralled three hybrids, a diesel and a supersized go-kart in the ultimate test of fuel economy prowess.

The Toyota Prius, Mini Cooper, Honda Insight, Ford Fusion and VW Jetta TDI were assembled to compete for the best fuel economy in city, highway and back road driving. IL also measured the cost to fuel each vehicle, and the amount of CO2 each vehicle emitted during the test. The five vehicles were prepped to do battle, but it wasn't much of a fight. The Toyota Prius won every conceivable category by a significant margin, with amazingly similar fuel economy between 47 and 48 mpg in all driving categories. The Prius also took on all comers in with regards to CO2 emissions, as the symbol of green motoring spewed .08 lbs less pollutants during the test than the second-place Honda Insight.

Hit the jump
to view the entire video. Outside of the dominance of the Prius, we were a bit surprised how the other four vehicles ranked during the battle for MPG.

[Source: YouTube Inside Line]

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