There's nothing new in sticking a PC in your car, but Shuttle themselves are now getting in on the act. They stuffed one of their own XPC SN21GS systems into a Mercedes S-Class for the Cartronics show in Taiwan. I'm really not sure about their choice of location for the keyboard, though: I have a terrible vision of some moron using the keyboard in the sun visor to write an email to their boss while steering with their knees doing 70 on the freeway. Mind you, with the four webcams inside the car, at least there would be plenty of recordings of their fiery demise.
Shuttle XPC-based car information system [Ubergizmo]