The first was the Yardley McLaren M19A (151) driven by New Zealander and 1967 World Champion Denny Hulme which was followed by the Brooke Bond Oxo Surtees TS9 driven by 1964 World Champion John Surtees (150), later followed by a Surtees TS9B in the livery of Italian sponsors 'Pagnossin', driven by Andrea de Adamich (153).