Welcome to London!
This is a California import car, and is rust free. It feels weird to mention a California car as an import. But, I suppose this car was re-imported back to Europe.
I met the owner! She is the original owner of the car, which is super awesome! She says the best part about owning a classic Saab is how robust it is, its sustainability, and that it was built by aircraft engineers. Tell me that's not a true Saab lover!