For whatever reason the driver believed the trail to the bunker was a road and were going too fast.

> “As I’m driving by, I’m like, ‘Wow, he's driving extremely fast to take that exit. You're not even supposed to be going up that way,” she said. "And I can see in my rear-view mirror this car that just go over the edge and straight down."

https://www.nbcbayarea.com/news/local/peninsula/tesla-plunge...

They’re incredibly lucky.