Roger Williamson, GRD 372, Barrie Maskell, Lotus 69, Conny Andersson, Brabham BT35, 1972 International Trophy, Silverstone.
International Trophy 1972
The 1972 International Trophy included the GKN Forgings Trophy Race, which was the fourth round of the Shell Super Oil Formula 3 Championship. The race was won by Roger Williamson in a GRD 372, followed by Jochen Mass and Peter Hull.
