PhatNoise offers a powerful Hard-Drive based MP3 Jukebox for Cars. They have special editions to fit your car like the Porsche/Ferrari edition or the BMW version and more.

The PhatBox lets you transfer all your CDs via a PC onto the PhatBox Hard-drive Cartridge you install in the drunk of you car like any other CD-Changer. The controls of the PhatBox are through the car stereo.

The PhatBox comes with 20GB, 40GB and 60GB Hard-drive and starts at $859.00.

The Limited Edition Platinum PhatBox comes with a 20GB DMS Cartridge (or 40GB or 60GB), a USB 2.0 Desktop Cradle, the PhatNoise Music Manager CD, the appropriate cable and connector for your car, and a user manual with installation instructions. PhatNoise strongly recommends professional installation for the PhatNoise Car Audio System.
Review the PhatBox Installation Manual (PDF).

Amazon.com sells a big selection of PhatBoxes.

See also:
New Ferrari branded Gadgets
The Porsche Wide Screen Notebook
Dell DJ JukeBox