Panteras racing at the Sebring 12 hours.......

That was Kleinpeter. One of those cars was a fliptop, front and rear with a full tube chassis. Don't know which one.
I talked to him about 1984-5 when he was selling the car, before I bought my car in '86.
The racers all knew him back then.
There should be pictures of it around somewhere.
It had the large vents/scoops on the rear fenders of the rear flip up rear, much like Dave Adlers car. I don't think it was a factory Gp4, but it might have been.