They either need to allow the phone's video output to be displayed on the in-car LCD (and for touch actions on the LCD to be relayed to the phone), or my preferred option just add a damn screw hole to every dashboard, so we can just screw in a GPS holder (or other accessories) and it will never ever fall off.
But around here the temp' falls to well below freezing in the winter to sometimes one hundred degrees (F) in the summer.
I just don't think suction cuffs are the best idea for this application in general. Phones are relatively heavy, cars shake from side to side, and temperature weakens the suction.
For a $1 screw thread in a hole which the manufacturer of cars could add trivially in seconds, it just seems like this should be a solved problem by now.
Otherwise, get one that is sticky, or one that connect to your dashboard.