Nope, it was not me. I pass this spot almost every day on my daily walk. On April 16 (yes, that day), we had terrible winds all day, which deposited a huge pile of leaves here where people often park to walk the trail. One day last week, there was a large blackened area here as you see, and remains of a car. I have heard no details, but I surmise that some poor (read dumb) soul parked on the leaf pile, went merrily away for their walk, and returned to find a charred mass where the car was left. Catalytic converters do get HOT.