When Mossad agents use their car to ram Aram's rental car from the right rear corner, we next see Aram's face resting in the steering wheel airbag. American car airbags will only deploy by means of a head-on collision. Rear and/or side collisions will not deploy front airbags.
Regular car body sheet metal does not shield the occupants from bullets, not even from weaker calibers, let alone submachine guns.