My previous car had a CD/MP3 capability...... 5-10 discs cover my tastes. The new car I have does not have MP3 but has a six stacker. FM wireless transmitters have also been available for ages, even when cassette walkmans were the go. I guess the iPods seem to have a more modular/trendy design.
Yes, I have to laugh when I see age-old tecnology repackaged in shiny white plastic, as if it's the latest technological breakthrough.
I got an FM transmitter for $20 at Wal*Mart, but I see them for all sorts of markups in Ipod accessory ads.
I'm not too fond of the FM transmitters, as they tend to degrade fidelity and performance. I had a piece of junk car stereo with one outstanding feature - a line in jack in the front face plate. Plug in your ipod, MP3 player, or whatever. How I wish this feature was offered on high quality decks.