This gathering of Porsche engineering top brass was not as might be expected at Le Mans or any other major race, but a purely internal gettogether. The venue is the Weissach test track on a summer morning in 1984 and the initiative came from Helmuth Bott who was keen to settle an argument about whether Porsche’s current Group C car, the 956, was as fast as the 917/30 Turbo of the previous decade. Senior engineer and 956 team manager Norbert Singer was quietly confident what the outcome would be, but he was not going to contradict Bott openly, content to see the board member for engineering find out for himself.