10. Ronn Motors Scorpion

The Scorpion uses a unique fuel mixture of gasoline and hydrogen to help reduce fuel emissions and increase efficiency. Using an on-demand hydrogen system that constantly collects water molecules, processes it into hydrogen, and delivers it to the intake manifold; the engine receives fuel that is 30-40% hydrogen. This gives the Scorpion 40 MPG.

9. Lotus Eco Elise

The Eco by Lotus is based off the standard Elise S. The concept is a low-emission eco-friendly model with various elements fabricated from natural resources. For example the body panels are made of hemp, eco-wool, and sisal. In addition Lotus utilized water-based paints to help reduce pollution during the painting process.

8. Saab Aero-X

The Aero-X is currently a concept car by Saab. The Aero comes equipped with a 2.8-liter twin-turbocharged engine that utilizes ethanol. With a V6 engine that goes from 0 to 60 in 4.7 seconds the Aero is certainly a quick eco-car. The car contains a 7-speed manual transmission that is controlled by paddle shifters on the steering wheel. Further the car features a futuristic cockpit design in the vehicle. There are no doors as the entire top of the car opens up for entrance and exit.

7. Velozzi

The Velozzi, an Italian sports car, was created for the X-Prize title of most environmentally friendly and marketable car. The car is unique because it can accept a wide range of fuels including biodiesel, ethanol, gasoline, and methanol. The car has a top speed of over 200 mph and can go 0 to 60 in roughly 3 seconds.

6. Venturi Fetish

The Venturi Fetish is often considered the world’s first production two-seater electric sports car. With a top speed of 100 mph, the car is no speed demon, but it does have some power in its initial acceleration—able to reach 60 mph in less than 5 seconds. The Fetish is powered by lithium-ion batteries that give the car a 250 mile range. It can also offer a full recharge in about 1 hour. The car is extremely rare as only 25 are produced each year and they each cost about $500,000.

5. Citroen C-Metisse

This is a concept car manufactured by French company Citroen. It was first unveiled in 2006 as a hybrid car that can use both diesel and gasoline. The hybrid powered engine can operate in Zero-Emission mode, all electric mode, and diesel mode for regular driving. The car is able to utilize front-wheel drive, rear-wheel drive, and AWD depending on the conditions. The car gets 36 MPG.

4. Toyota FT-HS

First introduced in 2007 the Toyota FT-HS is a hybrid sports concept car. The rear-wheel drive hybrid power train produces 400 hp and can reach 60 mph in roughly 4 seconds. The car utilizes a 3.5L V6 electric-motor.

3. Fisker Karma

The Karma is a plug-in hybrid electric vehicle. It uses Q-drive technology in which a small gasoline-powered generator charges its battery. The Fisker Karma is able to travel 50 miles using only electricity after which its gasoline engine will kick in. The Karma can get 100 mpg and can hit a top speed of 125 mph. The car can reach 60 mph in 5.8 seconds. The roof is lined with solar panels that aid in the charging of the batteries and also help keep the interior of the car cool while it is parked. The Karma is priced at $80,000.

2. The Lightning GT

The Lightning GT is an all electric sports car produced by British manufacturer Lightning. Like the Tesla roadster the Lightning GT can travel 250 miles on a single charge and apparently it only takes 10 minutes to charge the vehicle. It batteries were designed by Altair Nanotech and are more stable and less toxic than conventional batteries. Its motor output the equivalent of 650 hp and help the car reach 60 mph in less than 4 seconds with a top speed of 130 mph. The body of the car is made of carbon fiber and Kevlar. The car is priced at $300,000.

1. Tesla Roadster

The Tesla Roadster is probably the most famous electric car on the planet. Borrowing styling cues from Lotus, the Tesla is an all electric sports car that can hit 60 mph in 3.9 seconds. The Roadster can travel up to 244 miles on just a single charge and gets 4.7 miles per kWh, which equates to 135 mph. Tesla has just recently released the Tesla Roadster 2.5 which offers some cabin upgrades and different exterior stylings. They have also announced the Tesla Model S which will be a 4-door electric car to be released in the upcoming year. The Tesla Roadster is by far the best and most affordable “green” car at roughly $100,000.

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