We Have Our Gas-Bags, Too! - Fulminating Fuehrers and hissing propaganda Ministers ***** into insignificance in comparison with the gas-bags seen in London these days. Here is a car seen ***** the London traffic after "filling up" at a Hyde Park gas supply depot. It takes six minutes to ***** 250 cubic feet of gas, which equals one gallon and costs 1/8d. Could this happen again? A gas-powered car used during the fuel crisis in wartime. The gas was stored in the roof "balloon." April 22, 1940. (Photo by Topical Press).