An even earlier six-wheeled sports car

So the Covini C6W, that six-wheeled sports car we reported on yesterday, isn't actually the first sports car of its kind, as the company claims (they do acknowledge that there was a six-wheeled race car in the Seventies).
Anyway, Simon Perry notes that the Panther 6, which came out in 1977, had six wheels, and was also a sports car.