>>11172795CM Punk's a habitual liar so here's a cool tip for those looking to smash car windows with their bare hands for whatever reason:
BE VERY CAREFUL WITH THE FRONT WINDSCREEN.
The side windows of cars are made of tempered (safety) glass. They are designed to break into lots of little pieces when smashed to allow emergency escape.
The front windscreen is made of layers of laminated annealed glass and adhesive plastic. It is designed not to break, to protect the driver if some idiot in the car in front throws something out of the window, a rock gets thrown up by a car tyre etc. Do not punch it. It will tank your punch and you'll probably get a fucked up fist. Worse, if you are superman and do manage to somehow punch through it, it will likely form larger pieces of glass that are more likely to slice you up than the tempered glass of the side windows.