i had a ps2 in my mustang like 10 years ago.. it was really hard to drive the car left while steering the video game car right..
(i only tried once.. in a parking lot on a bet).
i also had dvds, and such playing, as well as a carputer that had real time gauges and such on the screen.. pretty advanced for the time. That was my only big stereo install ever. And i did it because the carputer was easy to build, and also had obd interface.