The concept

Pressing the Start/Stop button switches the ignition on or off and starts the engine.
Automatic transmission: the engine starts if the brake is depressed when the Start/Stop button is pressed.
Manual transmission: the engine starts if the clutch is depressed when the Start/Stop button is pressed.
See also:
Driving Experience Switch
The concept
The Driving Experience Switch can be used to
adjust the certain characteristics of the vehicle.
Various programs can be selected for this purpose.
The Driving Experience Switch and ...
Locking and unlocking
Pressing the buttons locks and unlocks the
doors and the trunk lid when the front doors are
closed, but they are not secured against theft.
The fuel filler flap remains unlocked. ...
2012 BMW 650 review
One of the greatest leaps in automotive progress this past decade has been
the taming of the convertible. Once requiring a tradeoff — open-air enjoyment
versus performance and year-round comfort — ...
