I remember straigthening a LH Torana with a block and tackle back in the good old days when cars were made of more rudimentary (manly) stuff like steel.
Next door neighbours little Bro had lost it on an off camber corner in Bayswater, then got sideways and accelerated. They hit a gutter and through a fence into a big brick BBQ which exploded across the guys back yard. He bent the front of the Torana 10 inches from straight, pretty much right at the windscreen line.
Off with the panels, up against our brick garage, out with Grandpas chain block, five minutes later, straight car. Today it would be a write-off.
In a side note on Holdens early adoption of passenger safety initiatives, when they hit the gutter, both sunvisors instantly dropped down thus saving his and his mates noggins when they slammed the visors with their heads at the moment of BBQ impact.