2007 BMW Z4. CONSUMER WRITES IN REGARDS WIFE'S IMPREZA VEHICLE ACCIDENT. CLAIMS OF "INADVERTENT AIRBAG DEPLOYMENT" CAUSED BY APPLYING BRAKES IN ANOTHER CONSUMERS BMW X3 THAT WAS INVOLVED IN ACCIDENT. *SMD THE CONSUMER WAS CONCERNED ABOUT THE BMWS' AIRBAGS BEING ABLE TO DEPLOY INADVERTENTLY. *JS