TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. THE CONTACT STATED THE VEHICLE WAS RECENTLY SERVICED UNDER THE NHTSA CAMPAIGN NUMBER: 15V568000 (ENGINE) IN WHICH THE ENGINE WAS REPLACED. AFTER RETRIEVING THE VEHICLE A BURNING ODOR WAS PRESENT COMING FROM THE ENGINE WHILE DRIVING AND THE VEHICLE WOULD DRIVE 'HARD'. IN ADDITION WHILE IDLING IN THE PARK POSITION, THE VEHICLE WOULD ERRONEOUSLY ROLL FORWARD. THE CAUSE OF THE FAILURES WERE NOT DETERMINED. THE MANUFACTURER AND LOCAL DEALER JOHN AMATO HYUNDAI(8301 N. 76TH ST. MILWAUKEE WI.) WERE NOTIFIED. THE FAILURE MILEAGE WAS 73,000. THE VIN WAS NOT AVAILABLE.