The Tesla Roadster needs no introduction to enthusiasts—it is simply known as “the electric supercar.”

The car’s performance (0-60mph) and price tag ($158,000) are familiar supercar territory, but the fact that it costs around $4 to ‘fill up’ puts it all alone for the moment.

Right now, there’s nothing in its segment or any other that compares to this car because it’s all electric and not a hybrid of any kind. It was also the first production vehicle to use lithium-ion batteries, the kind you find in cell phones and laptops—and now many manufacturers are following suit.

2010 Tesla Roadster

The Tesla Roadster has been freshened as of 2010 with better air conditioning, an upgraded adjustable suspension, and a more efficient electric motor.

Our test car, the 2.5 Sport, adds a new front fascia and rear spoiler, directional alloy wheels, better insulation and upgraded seats with improved bolstering.  There’s also more options, which our test car was equipped with—first. a $4500 “infotainment group” with a 7-inch touchscreen, navigation, backup camera, SIRIUS satellite radio, and HomeLink as well as upgraded speakers and a subwoofer.  Secondly, an “executive leather interior” with premium seats and carbon fiber accents for a cool $11,700.

Host Emme Hall was able to finagle a 2010 2.5 Sport for us to review from the Tesla dealer in downtown DC, and here are the results!

Emme Hall’s Website: http://www.hallassracing.com

Visit http://roadflytv.com for more pictures and a downloadable window sticker.

Vehicle: 2010 Tesla Roadster Sport 2.5

Base Price: $128,500

Price as tested: $158,145

Engine: AC induction electric

Transmission: single-speed

Horsepower: 288

Torque: 295

0-60 MPH: 3.7 sec.

1/4 Mile: 12.6 sec. @ 102.6 mph

Warranty: 3 years, 36,000 miles (vehicle)

YouTube Link:  2010 Tesla Roadster 2.5 Sport Video

For 2010, Nissan has taken over one-hundred pounds off the body and added more power behind the engine of their 370Z Roadster. This agile coupe had host Jessi Lang grinning as she took to the backroads and highways to test out this super-fast and super-fun convertible.

The 370Z boasts a 3.7-Liter V6 engine that produces 370 horsepower and 270 pound-feet of torque. It goes from 0-60 in about 5.1 seconds. Its advanced 4-wheel independent suspension has been made stiffer and lighter this year to improve its quick, responsive handles and ride comfortability. Fuel economy is manageable, you maintain about 18 mpg in the city and roughly 22 mph on the highway.

The comfortable interior maintains a racetrack-aesthetic, with digital gauges mounted into the dash that display all your pertinent information and a finely-tailored cockpit that make you immersed in a true sports car experience. And with the soft-top, the 370Z driving experience becomes a pleasure.

Our 370Z as tested, with the navigation package, came in at $45,270, up from the base price of $41,620.

The 370Z Roadster Touring boasts a lot of power and fun for your dollar, and is a tough competitor to beat in its price-range, a range which includes muscle cars such as the Mustang GT and Camaro SS, or sports sedans such as the Subaru WRX STI and the Lancer EVO. However, the 370Z easily stands on its on apart from the herd with its aggressive exterior, powerful drivetrain, and distinguishing, incomparable characteristics.