I'm considering a SmartTop too for these 3 main reasons:
-Roof operation with one push from the inside or by holding the remote button for 4-seconds. When opening/closing the roof, especially with the remote, at times I am not sure when the operation is complete or not. There was an instance in which I was closing the roof via remote and while holding it, I turned and the remote was slightly out of the line of sight of the car and the operation just completely stopped.
-Open/close roof while the car is in motion.
-Folding mirrors when I lock the doors.
Other than that, my CA option pretty much covers the other operations like all doors unlocking or the CA trunk access.
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2012 Z4
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