Was it the 750cc, supercharged DB-Panhard from 1955? The only front-wheel-drive Formula One car ever to have actually raced or the gloriously incompetent, W/12 engined, Life that kept us all amused and bemused throughout the 1990 season.
One might consider the long forgotten Shannon-Emery which ground it’s exhausts along the track all around it’s only lap of it’s only Grand Prix, in the hands of former Team Lotus driver, Trevor Taylor, at Brands Hatch back in 1966.
Or maybe the Maki F102 of 1976? The only car ever to have been disqualified from a Grand Prix because the other teams thought it was so dangerously built they didn't want to share the track with it!
We could, of course, very easily go on however.....