The first video you've posted is of a Volkswagen double cab vanagon truck. Definitely sold in Europe.

In the early 80s we had van halen on the apple 2+. creative computing magazine published a assembly language sampler with variable sampling rate. the apple 2 had a sound input - the cassette input.

On the crappiest setting, which had a grainy AM radio effect, 48Kb held about 20 seconds of audio. the best setting was something like 2 seconds.