Audi TT Coupe

If you don't have quite enough cash on hand for the 2008 Audi TT Roadster, the TT Coupe is a fine car, with plenty of room for two people and their stuff, thanks to the hatchback design. Sure it's expensive, but you can comfort yourself by knowing that you're getting a good mileage return on every drop of premium fuel you put in the tank.

Annual Fuel Cost
$2,501
City/Highway/Combined
23 mpg /31 mpg /26 mpg (with six-speed automatic transmission)

Lotus Elise/Exige

A Lotus? Third place on a list of fuel-efficient cars? You bet, and you can thank the premium-fuel sipping Toyota-sourced engine for its high ranking here. The Lotus Elise is not for everyone. Its light weight makes it fun to drive, but the Elise is also tiny, noisy and cramped. Yet it's a giant killer, and can whip much more expensive and powerful cars around a track, and nail them on fuel economy, too.

Annual Fuel Cost
$2,675
City/Highway/Combined
21 mpg /27 mpg /23 mpg (with six-speed manual transmission)

Audi A4 Cabriolet

The 2008 Audi A4 Cabriolet is not a cheap car to buy: It costs nearly $40,000 to start, and once you start adding options the price climbs fast enough to give you altitude sickness. Still, it's a good-looking and fun car, and with good fuel economy from each gallon of premium, at least you'll only have to worry about your car payment, and not your gas mileage, gas card or gas prices.

Mitsubishi Eclipse Spyde

The Mitsubishi Eclipse has moved far from its roots as a lightweight sporty tourer. Still, even with its added mass, the convertible Spyder manages to get good gas mileage thanks to its manual transmission and four-cylinder engine. Technically, its gas mileage is below the preceding Porsches, but since it drinks regular instead of premium, your annual fuel cost is lower.

Porsche Cayman

A Porsche on a fuel-economy list? Even in 10th place, that's impressive, and there's little about the 2008 Porsche Cayman that doesn't impress. From the styling to the snug interior to the handling, this little car is all Porsche. It drinks as much premium fuel as the Porsche Boxster -- number nine on this list -- and comes in 10th because of its higher base price.

Annual Fuel Cost
$2,825
City/Highway/Combined
20 mpg/29 mpg /23 mpg (with five-speed manual transmission)

2010 Chevrolet Camaro

CarTribe has procured a few shots and the initial details of the production Chevrolet Camaro ahead of its official unveiling this Monday. According to their report, the Camaro will come in LS, LT and SS trim, equipped with either a six-speed manual gearbox or a six-speed automatic. Of course, that doesn't account for the very-obviously-marked RS car that is shown in the official photos, so who knows what the whole story is.

Engine choices include either a 296 hp, 3.6-liter V6 or a 416 hp 6.2-liter V8 which will feature cylinder deactivation to boost fuel economy. Underneath the retro sheetmetal is a full independent suspension and StabiliTrak traction control system. Four-pot Brembo brakes are mounted up front on the SS variant, and the 3,700-pound coupe will reportedly have a weight balance of 52/48, front/rear. The neuvo-retro theme is carried inside with a gauge cluster inspired by the 1969 model, along with leather seats and blue LED lighting.

Lamborghini Reventon

The Lamborghini Reventon is an extreme super sports car without equals.

With only 20 produced (each 1 Million Euro), Lamborghini Reventon is a symbol of extreme exclusivity with extraordinary performance through the entire technical and dynamic competence of the twelve cylinder Lamborghini. Lamborghini prides itself on being the extraordinary manufacturer of extreme super sports cars without compromise. The Reventon was inspired by the fastest airplanes and perfected to the last detail