The idea of using compressed air to propel a passenger car has been kicking around tech circles for years. Now, Luxembourg's Motor Development International SA (MDI) may have the first viable angle to launching a first wave of air cars: airport transportation. Behold the AirPod, a four-wheel, multipassenger minicar set to be built in Nice, France. It's one of the brainchildren of Guy Nègre, a former aeronautics and Formula One engineer who's been messing around with compressed-air technology in passenger cars for nearly two decades.
How about a compressed air/electric hybrid? Using part of the energy produced by the batteries to compress the air, and when switching to compressed air use perhaps during highway use, using some of that energy to recharge the batteries? Another thought, exploring the idea of battery transfer stations like Israel is planning, using the existing gas station infrastructure, to exchange spent batteries for fully charged ones. Kind of like filling up at stations like we do now with gasoline, and the exchanged batteries would be continually recharged for the next customers. It would be important to develop the use of several small batteries instead of large bulky ones, and a modular approach for easy pop-in pop-out transfer. That sounds very feasible to me. What do other people think?
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