Top 5 Fuel-Efficient cars of USA

These cars were ranked in their class for fuel economy,cost,comfort and performance in America.Here is a list according to a study done by Forbes :
1.The Chevrolet Corvette ranks high among car enthusiasts for its speed, performance and looks.
2.Mercedes-Benz S-Class,
3.Lexus IS 250/350,
4. Mini Cooper Clubman and
5.Toyota Prius

1950 Buick Le Sabre Convertible

1939 Maybach SW38 Spohn Sport Roadster

German car manufacturer Maybach existed for a relatively brief period of time (1921-1941), yet managed to build more than its share of superlative automobiles. Considered a somewhat less flashy rival to Mercedes-Benz, Maybachs still had plenty of style and performance. The 1939 Maybach SW38 Spohn Sport Roadster is one of the most beautiful Maybachs ever, with thoroughly modern technology such as an electrically welded and cruciform-braced chassis, and fully independent coil suspension. Classic cars and vehicles like this were featured at the 2008 Pebble Beach Concours d'Elegance.

2009 Bentley Continental GTC Speed

Bentley is one of the most illustrious names in car history, boasting incredibly successful race cars, as well as classic, luxury touring cars. From this tradition comes the 2009 Bentley Continental GTC Speed. One of Bentley's three high-performance Speed models, the Continental GTC Speed has a 600 hp engine, allowing zero to 60 mph in 4.5 seconds, and a top speed of 200 mph.

Arnold Schwarzenegger with His Hummer

2007 Hummer H3

2001 Hummer H1 on Hill

'Smart Car' Parked Beside Humvee

Two people check out the Smart car on Yonge at Shutter parked behind one of the bigger vehicles on the streets of Toronto, a Hummer. Smart cars are so short that they can even be parked nose in or out to the curb to get into tight spaces.

2010 Mazda MAZDA3

2010 Mercury Milan Hybrid

Expect the all-new 2010 Fusion Hybrid and Mercury Milan Hybrids to generate some serious excitement when they go on sale .These highly advanced hybrids boast city mileage figures of 38 mpg or better. Thanks to a highly compact design, the hybrid system has a minimal impact on passenger and luggage space. The instrument panel features SmartGauge, consisting of high-resolution LCD screens that deliver information to the driver to help encourage fuel efficient driving.

2010 Mazda MAZDA3

The Mazda3 has always had a devoted following, in part because Mazda has managed to combine spirited (yet refined) performance with exciting styling. This tradition continues with the new 2010 Mazda3.