As my user name may suggest, I have a Corona 1975 RT104, you can't kill these things with an axe. There is a road that passes through a creek near my house with no bridge, i.e. the road dips down to the bottom of the creek, and whenever it rains it would the water level would rise to about 50-60cm.
Anyway I used to pass through this creek everyday to work, the thing used to fill up with water to just above my ankles. I must done this about 30 times, and did not bother it.
In my back paddock there was small hill, about 2 meters tall, well I used to jump the rona off that numerous times, and still drive it on the road the next day.
I used to burnouts with it like you would not believe, it used to axle tramp like crazy, you would think the dashboard would fly off it would shake that much.
These things were built very tough.