 Complete the following phrase:  BRM kept New Zealands Howden Ganley and Englishman Peter Gethin who were joined by Spaniard Alex Soler-Roig, using the P160B specification version for 1972 before it was replaced by the P160C version mid-season. The 1972 Argentine Grand Prix saw Soler-Roig retire with an accident. Gethin also retired with an oil leak and Ganley finished ninth. Jean-Pierre Beltoise missed Argentina because of legal problems following an accident at the track that claimed the life of Ignazio Giunti in a sportscar race in January 1971. At the 