[Bruce Edwards]

Do you use the windshield to pull yourself out of the car? It is a common practice for novice drivers and a bad idea. The first car we built we took to show the folks we got the car from and one of the dimwits we took for a ride took hold of the windshield to pull himself out of the car and broke it right up the middle. Of course he denied it.
If you have not pulled on the glass the other thing I have seen is to much strain on the windshield due to improper installation. I have no idea if that could be a problem with you car of that manufacture but it may be worth checking into.

Bruce Edwards
Gemini Motorcars Inc.