The 2011 Mercedes-Benz SL-Class SL 550 is equipped with dual front knee airbags, rollover protection system, front side airbags, front side curtain airbags, 4-wheel abs, auto-locking power door locks, alarm anti-theft system, braking assist, disc rear brake, 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, front seatbelt force limiters.