Claim: The 1950 Nottingham Trophy,  a non-championship Formula One motor race held on August 7, 1950, finished with David Hampshire coming in at first place and Reg Parnell in second using cars from the same manufacturer.
Evidence: The 1950 Nottingham Trophy was a non-championship Formula One motor race held on 7 August 1950 at the Retford Gamston Airport, in Retford, Nottinghamshire, England. 
United_Kingdom David Hampshire Maserati 
United_Kingdom Reg Parnell Maserati