Car covered: 1958 Mercedes-Benz 220S four-door sedan.
What went wrong: The customer backed the car out of his garage and put it into Park. As he opened the door to get out, the car began to roll backwards. He tried to stop it, but was knocked to the ground. The car rolled over his legs (luckily, without causing any injury), down a hill, and eventually stopped when it ran into a tree.
This is a companion discussion topic for the original entry at https://www.hagerty.com/articles-videos/articles/2004/11/25/and-car-meets-tree