mine is easy,,, i knew the person who purchased it new from the local chevy dealer, he was a customer of mine for years, he sold it to one of my friends in 72, and well,, we had more fun than young men should have in that car, then finally my friend fell on hard times in the current upheaval, and he always promised that he would never sell it to anyone else but me, so it holds many memory's for me, many which i can't share because i'm wiser,,, i hope,, and older, and thats my z28's history..