[PROBLEM] Raspi3 and official touchscreen issue?

[Skywatch]

(18th May, 2016 03:17 AM)IriDium Wrote:  The biggest issue was power, or lack of. Mainly how to shut down the RPi cleanly when the ignition was turned off.

Maybe OT but this should not be a problem.

Simplest would be a battery UPS for the pi and a signal from the car system power line. When the car powers off the pi gets an interrupt on a gipo (while powered still from the ups) and shutdown is commanded. Maybe even a big electrolytic would be enough?

Just a thought....