Well, the DeLorean was a legitimately innovative design, new and attractive to it's target market, with only one overlookable flaw (the PRV V6), but killed by its designer's bizzare legal and financial troubles. They didn't sell half bad until DeLorean had to stop producing them.

The Cybertruck is just plain weird, has little place in its target market, and comprised mostly of design/manufacturability flaws. It looks neat but is DOA.