8-Track Tape (1965)
A few tinkerers had made inroads on endless-loop tapes, but none had the clout of Bill Lear, businessman and inventor behind the Learjet. In 1964, he produced beta versions of his eight-track model − a leaner, more efficient update of inventor George Eash's Fidelipac − for RCA and Ford executives. The former licensed their music catalogue to Lear, while the latter offered eight-track player installation in their '66 models. The clunky EP host may have been short-lived and become the butt of jokes, but it also facilitated a permanent shift in how we listen to music in our cars and still makes for terrific retro-kitsch décor.