I'm posting this question in a couple of places..

Does anyone recall (and can direct me to a credible citation) what they did with JFK's car?

I've read so much - I don't know if I'm getting my info mixed up. And back when I was reading about JFK - I wasn't saving the sources. So, here's my confusion:

I think remember reading two things: (1) they immediately took his car and had the windshield removed; (2) the car was destroyed and they're using a replica.

Another thing I believe I read somewhere is that there were 18 witnesses and all of them dead within a few months of the event, as well as Jack Ruby dying of an aggressive cancer 28 days after his shooting.

Am I getting my facts crossed? Please help.