Crowd-funded Lego car powered by air

An air-powered car built of Lego, that can reach a top speed of around 20km/h (12mph) has hit the roads of Melbourne. It was built by an Australian entrepreneur and a Romanian technologist who used more than 500,000 pieces of Lego to complete the car. via Pocket http://www.bbc.co.uk/news/technology-25446912