Compressed-Air Cars June 2008 These sound mighty neat. http://problemattic.net/2008/06/compressed-air-cars KT commented: As a non-engineer I have no idea if this is a good question or not, but what kind of energy would they use to compress all that air? Christina commented: That sounds amazing. It also sounds like there will be massive-as fights for those when they come out on the market, seeing as they'll only be producing 3,000 a year. Jim commented: haha, yeah, does sound jsut like your sort of thing matt... "with voice recognition, internet connectivity, GSM telephone connectivity, a GPS guidance system, fleet management systems, emergency systems, and of course every form of digital entertainment." I wonder what ambient temperature is required, given that it uses that to reheat the compressed air- would they work in our winter?, or only hot places like india Matt commented: KT: apparently they come with a portable air compressor which will allow you to refill your tank with about 4 hours plugged into a 220V wall socket. So, electricity, but potentially not too much. Filling stations will have more efficient ways of compressing air (or at least bigger compressors.)Jim: good question. How cold would the compressed air in the tanks be? What temperature difference would be needed between the tanks and ambient?