Let's say I was driving a ford bronco and I decided to slam it into a tree, at what speed would it be deadly?

Let's also say its a 92 and I'm curious.

92 speed?

What unit?

Mph or kmh?

There are a LOT of factors besides speed like seatbelt, age, health conditions, height, weight, seat position, etc.

Go eat some Tide Pods jojo.

That's a waste of an increasingly rare 4x4.

Depends on the size of the tree.