On lap 1 of the Group 6A race Shirley loses control of his 1958 Ferrari 250TR "Testa Rossa" entering Turn 8. 

#21 is Tom Price in his 1957 Maserati 250SI; #70 is Ernie Nagamatsu in his 1959 Old Yeller II; #8 is Bruce McCaw in his 1958 Ferrari 335S.