BMW HIT VEHICLE DIRECTLY IN FRONT WHILE EMERGENCY BRAKING FROM APPROXIMATELY 60 MPH AND WAS SUBSEQUENTLY HIT DIRECTLY FROM BEHIND IN I-70 4 CAR PILE-UP. THE AIRBAGS DEPLOYED IN VEHICLE IN FRONT (KIA) AND VEHICLE BEHIND (AUDI) BUT DID NOT DEPLOY FROM BMW. DRIVER'S CHIN WAS GASHED OPEN, PROBABLY FROM IMPACT WITH STEERING WHEEL AS A RESULT OF AIRBAGS NOT DEPLOYING. WHIPLASH, BRUISING, SORENESS ALSO SHOWN IN DRIVER FOLLOWING ACCIDENT.