When I was 16, I owned a 57 chevy. It was a lovely old car, even as aged as it was.
Last night, I dreamed I was driving it around London, looking for leaded fuel ;)
But the trippy thing was - I could smell the car in my dream. I don't think I've ever smelled things in dreams before. And it was the smell that told me that it was my car, and not just any 57 chevy.
A 32 year old olfactory memory - just wow.