I never heard of any involment with Delorean and the Vega, he was President of Pontiac Motor Division. He was involved with the design of the recessed windshield wipers and putting a 389 cu in engine with three two barrel carbs, 4 spd trans in his own Pontiac Tempest, that later evolved into the GTO.
I drove a Delorean that a freind of mine bought new, I think it sticked in just under $20,000.00, they were getting up to $30,000.00 in dealer markups. I felt real clostophobic with the inability to roll down the windows, all the had was a small window that would open instead.
Johnny Carson had a Delorean, he got pulled over for drunk driving, the rumor was that he was driving down the street with both doors open.