The BMW “new half smart” car key shell is an aftermarket (or OEM-style) replacement outer plastic casing designed for certain BMW smart/proximity key shells
Body: Black plastic housing with a contoured, slightly tapered shape and silver/gray accent panels around the buttons.
Top silver button with an upward arrow — usually unlocks the doors (sometimes opens windows/sunroof when held).
Large central circular button labeled “LOCK” with a car + figure icon — locks the vehicle (and may activate the alarm or other comfort functions).
Bottom silver button with a signal/wave icon — commonly controls trunk/liftgate release, panic/alarm, or remote functions depending on the exact model and programming.