Computers in cars aren’t new; hell, you can buy one from Sony or Pioneer these days, if you want. But this homebrew job, ‘the Tatra Mac G4,’ is extraordinarily well put-together, right down to the live ethernet ports in the arm rest and the custom software that processes data gleaned from the car’s standard electronics. It even switches between GPRS data connections when WiFi is unavailable. This is exactly the kind of overkill I support. [Thanks, Sam!]