 Complete the following phrase:  In that race at Brands Hatch, Pryce took an unfancied Royale RP11 to first place in the Formula Three support race for the 1972 Formula One Race of Champions against many established Formula Three drivers such as Roger Williamson, Jochen Mass and James Hunt. So large was Pryces advantage at the end of the race, many of the other teams voiced an opinion that Pryces car had run the race underweight; it turned out that the circuits weighbridge certificate had expired and everyones cars had been underweight. Pryce retired from the leading group in the following two rounds at Oulton Park and Zandvoort, and then during practice for the support race of the 