The Ecotricity Greenbird – world speed record challenge.

Harnessing the power of the wind is what Ecotricity is all about! And now we’re taking our love of wind to a new level, with the fastest wind powered vehicle on Earth! The Greenbird will challenge all your preconceptions of wind powered travel – it’s simply an amazing machine powered only by nature. And not just on land… on ice too. It’s part aeroplane, part sailboat, part Formula One car…