There is a new website, well im not sure if its new, but its new to the classic car industry, its so hard to find anything about a classic car if your not buying it from the original owner. I have personally went to this site and ordered a report for my caprice, it costs $6.99 and it will tell you anything that has been recorded, mine only showed one thing and it was a title transfer back in 1993 to the second owner(im currently the 3rd owner), it didnt have much about my car but the fact that i found anything from the VIN is a step up in the classic car 13 digit VIN world. They send it to you in a pdf file, and its work the 7 bucks i guess lol. Heres the link!
https://www.instavin.com/index.php
https://www.instavin.com/index.php