Originally Posted by aladin sane
Since they need 300 bar, or just over 4400 psig, your shop compressor won't get the job done. It may cost a little more than you are thinking.
That's why I wrote "running cost".
Obviously, for a car like this to be viable, they need a cheap, or at least reasonably priced fuel, and what compressed air may cost right now has little relevance since fill up stations will most likely make their own, using electricity. The 1.5 euro for a fill-up seems a bit low, however.