THE VEHICLE WAS DRIVING IN NORMAL CONDITIONS, AT APPROX 40MPH IN THE EVENING. WHEN ACCELERATING TO PASS A CAR GOING SLOW IN A 50MPH+ ROAD, THE ACCELERATOR STUCK IN THE CADILLAC. THIS FORCED A DEFENSIVE DECISION TO UNFORTUNATELY HIT THE CAR IN FRONT VERSUS UNKNOWN CLEARING. AFTER (NOW AT 60MPH), THE ACCELERATOR STAYED STUCK, WHICH REQUIRED THE CAR TO THEN STRIKE A POLE AT 100MPH! THIS WAS A VERY DANGEROUS SCENARIO AND ONLY BY GRACE WERE ALL PARTIES SAFE IN THE PRIMARY CAR (CADILLAC REFERENCED), AND THE CAR STRUCK. THE CAR WAS TOTALED AND EVEN THE BLACK BOX WAS NOT OPERATIONAL AFTER SITTING FOR A 3 WEEK SPAN IN A TOW LOT.