This from the “fun things you can do with compressed gas” department:
Now I’ve seen everything. Tata, India’s largest automotive manufacturer, has developed a car that runs on compressed air, gets a range of 125-185 miles per tank, and a tank costs about $3 to fill up.. er..blow up.
The car will cost about $7,300 and has a top speed of 68mph. About once every 35,000 miles you have to change the oil (1 liter of vegetable oil). Initial plans are to produce 3,000 cars per year. Using compressed air to store potential energy is not only efficient, it’s pollution free while its driving. Of course there’s still energy used in making compressed air, and some polution may be created during that process, buts its lower than burning fuel carried with the vehicle.
More here from Gizmag: http://www.gizmag.com/go/7000/
No word yet on what it sounds like going down the road.