not only a tri power but has 3 pedals
https://www.hemmings.com/stories/2022/04/22/restoring-a-one-of-a-kind-1958-pontiac?refer=news&utm_source=edaily&utm_medium=email&utm_campaign=2022-04-25
1965 Thunderbird Special Landau 10th Anniversary Limited Edition only 4500 built 34,800 miles