AnsSafety features of Mercedes Benz GLA 220d 4MATIC AMG Line include center lock, child safety lock, anti lock braking system, 7 airbags, driver airbag, passenger airbag, side airbag front, engine immobilizer, speed alert, speed sensing auto door lock, seat belt warning, door ajar warning, rear camera, 360 view camera, electronic stability control (esc), day & night rear view mirror, knee airbags Driver, impact sensing auto door unlock, hill hold/start assist, tyre pressure monitoring system, curtain airbags whereas Audi Q3 Technology safety features are center lock, child safety lock, anti lock braking system, 6 airbags, driver airbag, passenger airbag, side airbag front, engine immobilizer, speed alert, speed sensing auto door lock, seat belt warning, door ajar warning, rear camera, 360 view camera, anti-theft device, electronic stability control (esc), day & night rear view mirror, knee airbags, impact sensing auto door unlock, hill hold/start assist, tyre pressure monitoring system, isofix child seat mounts, hill descent control, curtain airbags.