When I researched electric cars in the 80s, before lithium batteries were around, a company was selling kits that transformed a VW Beetle into a lead-acid elect

When I researched electric cars in the 80s, before lithium batteries were around, a company was selling kits that transformed a VW Beetle into a lead-acid electric car. The ICE engine could be removed and the electric engine simply bolted into place on the drive plate. The main concern back then was the difficulty of regulating the flow of electricity so that acceleration was smooth, much easier to do nowadays. The big question has to be the safety of batteries stored in spaces not designed for batteries. (Who else thought of Back to the Future and Doc's retrofit on the Delorean?)