i had a phone call off kath today to be told she has dented the tailgate,put a hole about 37mm in diameter in the bumper and put a crease in the bumper under the rear light cluster,she told me the car rolled back a little on my mums drive and she hit an 8 foot high dividing brick wall between 2 garages(she has parking sensors fitted also) but on investigation she has crumpled the crush can behind the bumper so its been a fair old bump ,the hole has been created by the hollow section of the crush can.
for christmas i am getting her an eye test as i am now concerned how big a wall has to be before she will see it.