Mine wasnt on a Celica but a brand new VW Van had just put a new elevating roof, windows, heating, full camping conversion in and it was ready to go to the customer. Decided to test the new conversion before they collected it, they knew it was being tested.
Up in the windy roads of Highlands on a hairpin met someone the other way and though only touched ended up with a fair size dent in the sliding door, no paint damage. Took door panel off at side of road, pushed and dent popped out but wouldnt stay.
To this day it probably still has the piece of wood i found to keep it pushed out behind the trim panel