The down grade was very gentle and the car in question hit the tree at all of 5 mph.
This was some Mini and you much have some strength.
You pushed it 80m and it ran straight and true for 80m without anyone steering.
You also got the steering lock off?
Seems unlikely.
If you read my original post you will see the keys were in the ignition so I was able to steer the car without the steering lock coming on. It was an old mini circa 70s I would guess. If you couldn’t push one of those on your own then you must be a feeble, old geezer.
Believe the story or not STW. I’m obviously not going to give explicit details of where it happened because it would be easy to pinpoint my house even though I no longer live there.