I just got a pile of cassettes and this was in there. Probably something you got when you bought a Ford with a car radio that could play tapes. It was sealed, I just unwrapped it and gave it a spin.
It sounds shockingly bad, way worse than a cassette can sound, and is recorded way too loud so it distorts, but it is a cool little gimmick to have. Musically it could be worse ;).
Still, cool to get a tape with your car (if only to re-record it...)