The 2014 BMW 4 Series 428i Convertible 2D is equipped with dual front knee airbags, rollover protection system, front side airbags, regenerative braking system, dual front active head restraints, 4-wheel abs, emergency braking preparation, cornering brake control, auto-locking power door locks, brake drying, ventilated disc rear brake, braking assist, ventilated disc front brake, dual front airbags, 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, post-collision safety system impact sensor, alert system impact sensor, battery disconnect impact sensor, door unlock impact sensor, front seatbelt warning sensor, fuel cut-off impact sensor.