While car manufacturers are doing everything from using recycled materials to developing diesel, hybrid and electric models, when it comes down to it, the car that guzzles the least amount of gas is generally the greenest. So whether you’re looking for an SUV, a sleek sedan, a luxury vehicle or something in between, here are 10 of the hottest, most fuel-efficient cars on the market right now.

Chevrolet Cruze Eco

The “eco” version of this compact sedan offers a highly refined (read: your father-in-law would approve) exterior and a comfy interior. And for a compact sedan, the Cruze is actually quite large and offers a ton of trunk space. It’s not a hybrid -- meaning it runs entirely on gas -- but it outdoes many hybrids in terms of gas mileage. The Cruze Eco gets a combined (translation: the average between its highway and city mileage) 33 miles per gallon!

Starting price: $19,175