You mean like the vehicles fitted with coal gas bags for fuel during WW1 
https://images.app.goo.gl/5DYdT1vmsrBuiQvB8
Mind you, arcing from the pantograph and gas bags on the roof might not be the best solution 
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
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