Danach wechselte er zu Ferrari und gewann u.a. das 1000 km Sportwagenrennen in Argentinien mit seinem Co-Pilot Phil Hill und gehörte 1959 und 1960 zum Grand Prix-Team.
He later joined Ferrari and won the Argentine 1000kms sports car race with American co-driver Phil Hill as well as being a member of the Ferrari grand prix team in 1959 and 1960.