Sandman,
I've had that happen many times.
So now for the winter I take off my regular draw bar and put on my "Winter drawbar". ( AKA battering ram).
I welded a piece on the heavy flat bar ahead of the drop so the whole thing had a C shape, then I welded and reinforced a 1" bar between the two. Its about 12" tall from where the ball would be to the top and sticks out a good 10". Plus being on the back of an F-150 it is a formidable enemy of car grill and bumpers..
Go ahead and hit that in your freakin BMW..!!!!!
