He drove Piper's green Ferraris – including the 250LM and 330P3/4 – on many occasions over the following five years, collecting a few point finishes in World Sportscar Championship events, and paired up with Piper for the Maranello Concessionaires team.
Pilotou os Ferraris verdes de Piper, incluíndo o 250LM e 330P3/4, en moitas ocasións nos cinco anos seguintes, acadando algúns puntos nos eventos de World Sportscar Championship emparellado con Piper no equipo de Maranello Concessionaires.