In 1963, Salmon began the year with the Aston Martin DB4GT, but competed in the Nürburgring 1000 km race in a Ferrari 250 GT alongside entrant Chris Kerrison, finishing eighth. The year also yielded his best result at Le Mans, finishing fifth overall in a Ferrari 330 LMB entered by UK Ferrari importer Maranello Concessionaires and co-driven by Jack Sears. He also won the Brands Hatch six-hour race in July, a round of the European Touring Car Championship, co-driven by Peter Sutcliffe in a Jaguar Mk II. However, the car was subsequently disqualified as the engine did not meet the regulations. He also competed on behalf of John Coombs, in a Jaguar E-type and Ferrari 250 GTO, finishing eighth in the Silverstone 1963 British Grand Prix support race and fifth in the Guards Trophy at Brands Hatch respectively.