You won't be able to spot him, they dumped him a long time ago.
As for the DeLorean, the one in front of the ride was a different park-specific DeLorean. They sometimes had the screen version car drive around early on, but then they had one specially made for display in front of the ride, which was horribly inaccurate. Ugly and oversized Mr. Fusion, covered in junk, and two time circuit displays, it was hilarious.