The 585 was on its 1st trip to the Austrian lakes (from memory) and had not been spashed yet.
The truck driver fell asleep ond ran into the back of the queue of traffic entering a tunnel, It seems the couple of caravans and cars did most of the stopping work and the 585 was the final handbrake!
The boat in under insurance review at the moment but the owner had asked for another one!
Better luck next time !