Thanks Jaakko, i knew about the info but only know was bothered to change it
“A steel bar that was used to keep up the lines by the road collapsed when Gronholm and Timmo drove over it, it penetrated the bottom of the car, Timos seat and seat cushion, but luckily nothing more and Timo was not seriously injured.
This information is from TImo himself in the story below. It´s in Finnish.
Drilling out inside driven steel tube piles where refusal has been encountered above designed towed level so that the tube can be redriven to reach the designed tow level.