How can I find previous ownership/location details of my car?

The fact is, you might not be able to. Carfax is over-rated, but will be happy to take your money. Frankly, I consider this kind of thing "private."

I was scared shitless when I got a VERY threatening letter about 2-3 years after selling my 86 Ranger, from the local county sheriff. This was a court type document, the truck had been impounded for some extended parking violation, and they made it sound as if they wanted me to pay

I called them up and raised hell. I KNEW the guy's "girl" friend I'd sold this to, and KNEW she had properly transferred the title into her name. There is no reason on God's earth why anyone should have legally connected that truck to ME for any reason.

The deputy told me "they have records just about nobody else can access" and "they are required" to contact all know previous owners in such a case. I was ******* livid.