I picked up my Emira last June, and it has about 4K miles on it. I recently noticed a windshield crack, going from the top down to the right of the mirror mount, across to the left along the bottom of the mount, and then a few inches down to the left of it . The thing is I don't recall a stone impact while driving, and there is no obvious impact defect. Possible stress crack, ie, warranty issue ? Anyone else had this happen ? The dealer wants $ 6000 to replace the windshield.