The car you see here is not a GNX. Hell, it's not even a Buick. You'd be forgiven if you thought it was, though, and it does sport a turbocharger underhood. David Morad was so enamored with the 6.6L LB7 Duramax diesel in his truck that he wanted to put it into something lighter and more fun. He decided to build a Grand National around the engine, and started buying up whatever applicable Buick body parts he could find -- right down to legit GNX dash plates. Next, he bought an '82 Buick Regal diesel that was to be the subject of the transformation. Unfortunately, that car literally self-immolated as he drove it home, sending Morad straight back to square one.