Table:
text: 1971 Formula One season
Non-Championship race results
Non-Championship race results
Race_Name Circuit Date_ Winning_driver Constructor_ Report
XIV Argentine Grand Prix Buenos Aires 24 January Chris Amon Matra Report
VI Race of Champions Brands Hatch 21 March Clay Regazzoni Ferrari Report
Questor Grand Prix Ontario Motor Speedway 28 March Mario Andretti Ferrari Report
XII Spring Trophy Oulton Park 9 April Pedro Rodriguez BRM Report
XXIII BRDC International Trophy Silverstone 8 May Graham Hill Brabham - Cosworth Report
VI Rhein-Pokalrennen Hockenheim 13 June Jacky Ickx Ferrari Report
XVIII International Gold Cup Oulton Park 22 August John Surtees Surtees - Cosworth Report
I World Championship Victory Race Brands Hatch 24 October Peter Gethin BRM Report

Question: Who is the designer of John Surtees' racing car at Oulton Park among the non-championship race results of the 1971 Formula One season?

Question: Which race was Matra's constructor in the non-championship race results of the 1971 Formula One season?

Question: Which race took place at the Hockenheim circuit in the 1971 Formula 1 season? Results of non-championship races?

Question: Who was the winner of the XII Spring Trophy race with BRM as constructor among the non-championship race results of the 1971 Formula One season?