In a collection of design flops that includes products that many of we nerds often lament, the Wall Street Journal also remembers the Buick Reatta, a strange little two-seater that featured among other innovations a touchscreen interface for its radio and climate controls. And people hated it. Wikipedia remembers:
During the first two years of production, the Reatta, like its Riviera stablemate, featured a touchscreen computer interface called the "Electronic Control Center", or ECC. The touchscreen controlled the radio and climate control functions and provided diagnostic access to the vehicle's various electronic systems and sensors, mostly eliminating the need for a diagnostic scanner. It also featured a date reminder, a trip computer, and a user-configurable overspeed alarm.
You can see the interface in diagnostic mode in the video above. Unfortunately I can't find a good video showing the basic, user-facing functions of the ECC.