I have a handful of CDs in my car. They each kind of accidentally found a home there. My buddy's band's CD is there because he gave it to me and I never took it out, a copy of Love You to Death by Tegan and Sara that another friend burned me, a copy of Material Control by Glassjaw that came with a ticket to the release show. There may be one or two more.
None of them have been played since I got a bluetooth adapter and stopped having to switch to a CD in the middle of driving because my phone's port wouldn't cooperate with my aux cable.
This thread also reminds me of the time that @olopez6919 drove me back to a hotel after a show and wound up staying there while someone stole a bunch of CDs from his car. ☹️