The 2011 Mercedes-Benz E-Class E 550 is equipped with driver attention alert system, driver knee airbags, front side airbags, rear side curtain airbags, front side curtain airbags, dual front active head restraints, 4-wheel abs, emergency braking preparation, 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, electronic brakeforce distribution, stability control, traction control, occupant sensing passenger airbag deactivation, front seatbelt pretensioners, child seat anchors, rear seatbelt pretensioners, seatbelt force limiters.