This accident happened on April 18, 1994 in Cold Spring Harbor, LI. I drove past it shortly after it happened. The truck's brakes were subsequently inspected and found to be OK. The cause was a lead-footed driver with a full load who had overheated the brakes before the final, steep grade. Amazingly, no one was seriously injured. The truck was still in service after the grille was hammered out. I don't think you can say the same for the Olds wagon. The truck was an IH Paystar 5000.