The 2021 BMW 3 Series M340i is equipped with front pedestrian automatic emergency braking, front automatic emergency braking, pedestrian detection pre-collision warning system, driver attention alert system, audible warning pre-collision warning system, visual warning pre-collision warning system, dual front knee airbags, premium brakes, rearview camera system, front side airbags, rear side curtain airbags, front side curtain airbags, regenerative braking system, 4-wheel abs, emergency braking preparation, anti-lockout power door locks, cornering brake control, auto-locking power door locks, painted brake calipers, brake drying, auto off electronic parking brake, ventilated disc rear brake, alarm anti-theft system, braking assist, hill holder control, 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, in dash rearview monitor, occupant sensing passenger airbag deactivation, front seatbelt pretensioners, front seatbelt force limiters, front emergency locking retractors, post-collision safety system impact sensor, alert system impact sensor, battery disconnect impact sensor, door unlock impact sensor, rear emergency locking retractors, front seatbelt warning sensor, fuel cut-off impact sensor.