A high-powered firecracker explodes in his car

It's fair to say it wasn't much of a party for this motorist on July 4, the national holiday in the United States. For some unknown reason (argument, bad joke?), someone threw a huge firecracker into his car. Rather than throw it out, or run away, the motorist locked himself in the car with the mini-bomb. The blast of the explosion was so powerful that it blew the car doors open, leaving even more damage inside the car...