The contact owned a 2021 Ram 3500 Promaster. The contact stated one of his employees was driving at 40 MPH, when a burning odor was emitted from the vehicle. Smoke was emitting from under the hood and entered the vehicle through the A/C vents. The driver exited the vehicle. The driver did not sustain any injuries. None of the air bags deployed. It was unknown if any warning lights were illuminated. A police report was filed. The vehicle was consumed by the fire and destroyed. The vehicle was towed to a towing yard. The origin of the fire was the engine. The manufacturer was not notified of the failure. The contact notified the insurance company. The failure mileage was approximately 80,000.