Well, you're not wrong about novelty being a much rarer thing in the past but people rarely drove alone in total silence. 8-tracks and cassettes came along eventually but even before then, people listened to the radio which had a wide variety of music, news, sports, and call-in shows. Truckers had CB radios and would talk to other truckers and drivers to pass the time.

Those who didn't see much of the world before the last two decades have this impression that everyone was far less connected to the world and each other before the Internet. That's not strictly true... the Internet made long-distance connections and access to content easier, but the ease of access to entertainment (namely, social media) has greatly weakened local connections.