The Air Car - Zero pollution and incredibly cheap

torok writes: According to this article on Gizmag, Tata, India's largest automotive manufacturer, has developed a car that runs on compressed air. It costs less than $3 USD to fill a tank on which it can run for 200 to 300km. The car will cost about USD $7,300 and has a top speed of 68mph. About once every 50,000 km you have to change the oil (1 litre of vegetable oil). Initial plans are to produce 3,000 cars per year. I think the world needs about 100x that.