The family used it as a daily driver until 1980. Robert and Sean Kiernan started working on it in 2001. After Robert died in 2014, Sean finished the project, The Associated Press reported.
“As far as Mustangs go, this is it. With dad being down in the record books forever, that’s what matters to me,” Kiernan said. “I’ve been at peace with the sale for probably eight months now. We’re just having fun with this.”