Think I might have answered one of my questions by looking around the mp3car store. Looks like this is the PC you get (Mini-ITX Vehicle PC Case w/ built in 120w power supply) with the following dimensions....
358mm x 232mm x 80mm
14.32" x 9.28" x 3.2"
1.70kg / 3.75 LBS
Still curious about sound card, optical drive that is included with the package.