OUR VAN WAS PARKED IN OUR DRIVEWAY WITH OUR KIDS INSIDE. WHEN MY WIFE OPENED THE DRIVER'S DOOR IT BEGAN TO ROLL DOWN THE DRIVEWAY, DRAGGING MY WIFE AND WITH OUR TWO SMALL CHILDREN IN THE VAN. THE VAN WENT ACROSS THE STREET STRIKING A NEIGHBORS AC UNIT. MY WIFE SUFFERED A BROKEN ARM, SPRAINED ANKLE, AND A GASH ON HER CHIN. A POLICE REPORT WAS FILED FOR THE INCIDENT. I BELIEVE THIS TO BE A MECHANICAL FAILURE OF THE VEHICLE.