It was supposed to have an underlying fiber composite structure so between the stainless-steel body and composite, there would be no rust problems. I think they ended up using steel and it ended up being overweight and underpowered.
What was interesting and which foreshadowed themes from the future, DeLorean first received some US government funding pitching it as a safety car and Ireland government money pitching it as a high-tech jobs program. Then the US government tried to entrap him. DeLorean beat the rap.
I liked the original as a "style statement." Then I sat in one at a car show. After about ten seconds, claustrophobia began. I wanted OUT, RIGHT NOW! I'm not prone to claustrophobia, but there was something about that car's interior that got to me.