I know this could happen with the old fashioned key .. but unlikely.


That depends on your definition of old fashioned! In the 70s my Triumph key would work in my mates Triumph. We'd been using each others key for months before we realized. Back then we laughed at continental keys that were just straight pins in the misbelief ours were more secure. Of course they weren't, they just looked it with their different "cut" shapes = one key could still open a myriad of vehicles.

More recent keys were more sophisticated and more secure, but they have sadly been replaced by electronic fobs & phone app keys.