TL*THE CONTACT OWNS A 2004 BUICK RENDEZVOUS. WHILE DRIVING APPROXIMATELY 35 MPH THE CONTACT BEGAN TO SMELL A BURNING ODOR. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS TOLD THAT THE COOLANT BEGAN TO MIX WITH THE OIL AND DESTROYED THE HEAD GASKET. THE ENGINE WAS REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 90,000. THE VIN WAS UNAVAILABLE.