In the 70’s I was involved with the Nixon Presidential Limo and met with the folks who did the armour plating. After JFK
was hit his limo was sent to the folks who did the plating and the owner had indicated to me that there was a 2 inch scratch in the bullet proof windshield on the passenger side that could only be from a bullet. I left specifics out on purpose.
These interviews and info about the JFK limo post assassination suggests that the 2 inch scratch seen in the windshield was of the replaced windshield.
WHY was it replaced?
If you want to know what happened in the JFK assassination:
1. FIRST LISTEN TO WHAT THE WITNESSES SAID HAPPENED.
2. Then use ONLY evidence the US government (nor anyone else) could have forged
Compare 1 and 2, if they match you have a likely scenario. Then use ONLY EVIDENCE that mathematically could NOT be wrong.
Once you know how to PROVE WHAT HAPPENED DURING THE SHOOTING, it quickly becomes apparent that for the US government to hide the truth, the limousine condition had to be changed. It was changed by sending it to Detroit and anything that had to be done to deceive the public was done.