The BMW 4-Series has no crash-test data reported on its behalf.
Each copy comes with the usual standard safety gear, as well as a system that notifies first responders when the car is involved in a crash.
Other choices are maddening. Bluetooth is standard, but BMW makes a rearview camera an option. Surround-view cameras are available, too.
Other safety options include parking sensors, LED headlights, adaptive cruise control, automatic parking assist, blind-spot monitors, and a lane-departure warning system.