list of terms only Mopar people know

Pushbutton. Might be wrong on this one.

You're right, the push button transmission is Not unique to Chrysler, either...

AMC Rambler & Ambassador (except American) 1958-1962
Edsel 1958 (upper line Corsair and Citation only)

The Rambler and Chrysler products had the pushbuttons to the left of the steering column. The Edsel had the pushbuttons in the steering wheel hub.

Renault offered a push button controlled automatic transmission on one of their models that succeeded the disastrous Dauphine. This slightly larger, squared-off model (The Renault 10??) used solenoids and servos to shift its manual gearbox, and the driver used push buttons (to the left of the steering wheel!!) to select gears. Like most other Renault innovations of that era, it was extremely prone to breakdown and was short-lived.