You can try to get the info of the yard that bought it from salvage (Copart/IAA) auction, but as stated above Copart/IAA will not tell you any info about who won the auction. You need to go through the insurance company that totaled it out and sent it to Copart/IAA, they can get the info from Copart/IAA, although they may not do it without a court order. I investigate car crashes and have found several cars this way, but my client (attorney/insurance company) has always had to issue a subpoena to get the info..