I have pretty much quit using my car CD player. My 2012 auto has a 5 disc changer, and it takes a whole lot of poking just to play something. I don't like to take my eyes off the road, so it has kind of become useless. Actually kind of dangerous. Since my car trips are usually 30 minutes of less I would mostly just like to stick in a CD and let it play, like I used to do.
Now I have been forced to rip MP3's (with their horrible sound) to an SD card, because I can just stick the SD card into the player and it will start playing. This has actually been kind of fun because I have a large enough CD collection and my tastes are wide enough, that my SD cards have a lot of variety and different composers on them. But it does take some time to set them up in the first place.
The only cd I've played in the car for ages has been the Sparks "two hands, one mouth" live tour disc. I've got my ipod more or less permanently fixed into the sound system via a hands-free kit, and recently have been mostly playing Never Say Never Again.
My car has a six-disc changer. Currently in there are Human Target discs 1 and 2, which haven't left it in a very long time; Star Trek Into Darkness, which booted The Amazing Spider-Man; Dopper's Zuiderzee Symphony, which booted Iron Man 3 (which booted John Carter which booted Speed Racer from a slot it's filled for years, and will probably fill again soon); and The Hobbit discs 1 and 2, which replaced, I think, Terra Nova.