what does deando after he backs the cadillac overa fire hydrant?

He continues to trash the car,

"By nine o’clock the car was an utter wreck; the brakes weren’t working any more; the fenders were stove in; the rods were rattling. Dean couldn’t stop it at red lights, it kept kicking convulsively over the roadway. It had paid the price of the night. It was a muddy boot and no longer a shiny limousine."