That happened to me and my granddad in the early 70's in his Austin A35 estate.
We were travelling down the road and this wheel came bouncing past us to which granddad says " some bugger's lost a wheel", at which point the off side rear goes down and near side front comes up.
Brake drum saves the day.
I went off to retrieve the errant wheel which was re-fitted with 1 nut from the other 3.
No damage to anything.
Happy daze.
