Having spent far too long trying to find songs about '64 Chevrolets, I eventually came to my senses, and thought that the fact that Song #4 shows a police car might be more significant. That led me to the guitar instrumental "Squad Car", originally by the Bel-Airs. There are quite a few cover versions, but I didn't make any progress until I found a 2003 CD compilation called "Lost Legends of Surf Guitar, Volume 3". This has three tracks by a group called Thom Starr and the Galaxies, who I had never heard of, but looking into it further, they did a cover version of "Squad Car", and Thom Starr is Artist #7.
It wasn't easy to find, because the group only recorded one album ("Sons of the Beach", 1963) and a few other tracks, but none of the recordings were issued at the time, and only appeared together for the first time in a 2010 compilation CD "South Bay Surf: Anthology 1963-64". Thom Starr left the group in 1964, and was briefly replaced by Paul Johnson from the Bel-Airs, who wrote "Squad Car", so I suppose it was all somehow in the family.
So Song #4, "Squad Car" and Artist #7, Thom Starr and the Galaxies.