"We replace aluminum paddles with carbon; we lighten the vehicle up, and we make it a fun driving machine; and then we do ...

Nikola filed for bankruptcy protection on Wednesday, the latest electric vehicle firm to shut operations after grappling with tepid demand, rapid cash burn and funding challenges.

Nikola Corp.’s plan to sell its business in bankruptcy is complicated by the federal government’s expected retreat from policies and incentives that were meant to boost electric-vehicle sales.