NEW VEHICLE (FROM MERCEDES OF ENCINO) WAS BEING DRIVEN IN A TEST DRIVE. EB ON BURBANK BL-SPEED LIMIT 50MPH--IN CENTER LANE OF 3 EB- MBZ SALESMAN REACHED ACROSS DRIVER AND SET CRUISE AT 40MPH AND ENCOURAGED DRIVER TO TEST THE COLLISION PREVENTION SYSTEM---TRAFFIC AHEAD WAS STOPPED AT LIGHT---SALESMAN CONTINUED TO TELL DRIVER TO NOT APPLY BRAKES--DRIVER DID NOT APPLY BRAKES---COLLISION AVOIDANCE SYSTEM FAILED--SEAT BELT TENSIONERS FAILED---AIR BAGS DID NOT DEPLOY WHEN S550 COLLIDED WITH REAR OF STOPPED VEHICLE (ECLASS MBZ) AT APPROX 40MPH. BACK SEAT PASSENGER (DRIVER'S WIFE) WAS HOSPITALIZED FOR CRACKED STERNUM---DRIVER WAS SEEN BY CHIROPRACTOR FOR AGGRAVATION OF LOWER BACK MUSCLES--------MBZ ENCINO STILL HAS THE VEHICLE, PRESUMABLY IN POST CRASH CONDITION. MEETING IS SET AT MBZ ENCINO FOR MARCH 20, 2015 TO INSPECT VEHICLE. MY ATTORNEY WILL BE IN ATTENDANCE. *TR