Nothing would have saved the Delorean. It’s problems all come back to money that they ran out of.
it would have been more interesting with a turbo but it was doomed from the start.
If anything a turbo of that era may have brought the end sooner. Turbo durability was poor in this era with no good synthetic oils and the lack of water cooling of the turbo bearing.
Maybe towards the end but designer of the Pontiac GTO and otherwise acquitted of the cocaine deal. So all in all maybe no so much