Parker also electrified the London Underground, built trams in Birmingham and Liverpool, and invented a smokeless fuel called coalite. But his car didn't catch on because of the success and convenience of cars based on the internal combustion engine, so he turned his interest to public electrical transportation instead. [Daily Mail]
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Yeah the real limiting factor then was battery tech.. still is today. Battery tech hasnt slowed down despite the lack of electic cars. Gas cars can go farther and fill up quicker. Nobody wants to charge for 4 hours + after only 90 miles.