In 1956 Vandervell drafted in Colin Chapman, Frank Costin and Harry Weslake on the engineering side. Even over the brief duration of his involvement with the sport, it was this ability to spot new talent that marked Vandervell out as one of the most successful and influential F1 team owners. The 1956 car, built fully in-house, took Vanwall's first major victory in the International Trophy early in the year, in the hands of Stirling Moss. Unfortunately, the rest of the season failed to live up to this early promise. Moss was joined by Tony Brooks for the 1957 Formula One season, and the pair shared Vanwall's first World Championship victory in the 1957 British Grand Prix. Moss took two further victories that season, laying a foundation for the team's zenith year: 1958.