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If you’ve been in the market for a car after a long break from dealer lots and confusing stickers, you might be depressed at the lack of progress that’s been made when it comes to eco-friendly vehicles, but Steph at WebEcoist provides some hope for the future with this round-up of thirteen green machines, some just concepts for now, but others with plans to hit the assembly line.

Aiolos Concept Car (above)

This spherical object is a car. Really. Designer Kyoung Soo Na envisions it for a new, greener Seoul, South Korea, in which buildings equipped with wind turbines produce enough energy to power little pollution-free electric vehicles. And when this one-seater vehicle is being driven, built-in turbines capture additional energy.

Mitsubishi i-MiEV Sport Air

Shown at the Geneva Motor Show in 2009, the i-MiEV Sport Air is a follow-up to the automaker’s current MiEV electric vehicle. Skyrocketing in the horsepower department with 680 Nm of torque, the i-MiEV Sport Air has a removable transparent roof. Weighing 25% less than the current model, it sounds like it just might live up to Mitsubishi’s promise that it will be a “proper sports car” for people who care about looks, speed, handling and the environment.

Full story at WebEcoist.

The future of cars?