Even the tiniest nick in the surface of a piece of tempered glass causes it to explode into small gravel-like chunks that don't have the sharp jagged edges of broken plate glass. Because of the slight distortion present when looking through tempered glass at an angle, it's not suitable for use in a windshield. All windshields, either flat or curved, must be made of laminated glass.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!