I bought a brand new 2014 is 350 f sport on august 29, 2014. on or about september 17, 2014 as i was driving home, something hit my windshield and within 24 hours the crack had spread demanding replacement. i paid $1800. to replace with lexus certified windshield around the 1st of october. on october 10, 2014 as i was travelling home i heard a slight tap. by noon on saturday, the crack was beyond repair. i have had this new car less that 2 months and i am having to replace its windshield for the second time. i haven't even received the new license plates yet. i am almost 65 years old and have owned 10 cars and this is my first cracked windshield experience. i am thinking that either the vehicle has a design flaw, or more likely the windshield has a design flaw. the repair service confirmed that the is seems to experience an inordinate number of windshield replacements. even the dealership confirmed numerous is windshield replacements. at $1800 per replacement, this is a serious problem. *tr