“The Air Car should be surprisingly practical. The $12,700 CityCAT, one of a handful of planned Air Car models, can hit 68 mph and has a range of 125 miles,adequate for cities. It will take only a few minutes for the CityCAT to refuel at gas stations (or anywhere else) equipped with custom air compressor units. It should cost around $2 to fill the car’s carbon-fiber tanks with 340 liters of air at 4350 psi.
The Air Car, developed by ex-Formula One engineer Guy Nègre for Luxembourg-based MDI, uses compressed air, as opposed to the gas-and-oxygen explosions of internal-combustion models, to push its engine’s pistons”…. <More>