The 2015 Mercedes-Benz S-Class S 550 is equipped with front automatic emergency braking, driver attention alert system, audible warning pre-collision warning system, visual warning pre-collision warning system, driver knee airbags, rearview camera system, front side airbags, rear side curtain airbags, rear side airbags, front side curtain airbags, front parking sensors, rear parking sensors, dual front active head restraints, 4-wheel abs, emergency braking preparation, auto-locking power door locks, brake drying, ventilated disc rear brake, alarm anti-theft system, braking assist, ventilated disc front brake, dual front airbags, vehicle immobilizer anti-theft system, power brakes, latch system child seat anchors, electronic brakeforce distribution, stability control, traction control, occupant sensing passenger airbag deactivation, front seatbelt pretensioners, front seatbelt force limiters, first aid kit, post-collision safety system impact sensor, rear seatbelt pretensioners, rear seatbelt force limiters, rearview monitor, battery disconnect impact sensor, door unlock impact sensor, front seatbelt warning sensor, fuel cut-off impact sensor.