Just had to have the windshield on my 2001 Elantra replaced. Hit a small rock, or chip, on the freeway, $50 deductible. This is the second replacement, had to have it replaced about 18 months ago, also due to a flying stone on the freeway. Have owned different cars for over 50 years and have never had this misfortune before. The windshield installer says it is because inferior glass and manufacturing techniques are the cause.