The FT has corroborated my favourite allegation:
In another instance, the short seller said Nikola faked a product video in 2018 by rolling its Nikola One truck along a downhill stretch of highway, to disguise the fact that the vehicle had no working engine, and filming it to appear it was being driven. A person familiar with the video confirmed to the Financial Times that Nikola had filmed its promotional video showing a moving truck by letting it roll down a hill in an isolated area in Utah, then edited the video to make the terrain look flat. “That’s a classic pattern of Trevor,” the former partner said. “Use just enough true elements of something to get past most people’s sniff test, but still have ulterior motives, and still have a dishonest deception in mind.”
FT