Just sharing pics of my carputer dirtbag installation (well, it's not that bad)...
Works great, hides away in the glovebox. Startup via mouse click, auto shutdown from windows set to suspend after 1min when running off battery power...
Acer Aspire One 532h (one of the only netbooks I found that can wake from sleep using a USB device)
Car charger wired to new lighter socket, power on ignition only
USB powered VGA to composite video adapter
Microsoft Arc Mouse
Block o' wood (to prop the laptop in place during spirited driving)
RNS-E (video-in-motion unlocked)
Alpine audio gear (search for details)
Kufatec IMA Basic (composite video input)
HiTV Pure II SDTV tuner (2 AV inputs, one for iPod, the other wired to glovebox)