These clips are from the documentary “Revenge of the Electric Car,” offering a rare behind-the-scenes look at the intense battle to revive electric vehicles, featuring Tesla Motors, Nissan, and GM. In December 2008, Tesla Motors and SpaceX were on the edge of bankruptcy, grappling with the severe impact of the 2008 financial crisis. Tesla was nearly out of funds and faced the very real threat of not being able to meet payroll. But in May 2009, Tesla found a lifeline. Daimler (now Mercedes-Benz)