(Jesse Alexander Archive)
John Surtees ‘P3’ at this point but his Ferrari gearbox failed in the race won by Stewart’s BRM P261…
(David Phipps)
Surtees in his big Ferrari 312, a new F1 car built to the 3 litre formula introduced that year leads Jackie Stewart in his light, nimble BRM P261, a 1.5 litre F1 car bored to around 2.1 litres and shortly to be victorious over ‘Big Johns’ heavy and not so powerful Ferrari.
It may have been different if he had driven the light, nimble Ferrari Dino 246 allocated to teammate Bandini, but that was not to be and so the pressures mounted which lead to Surtees departure from the Scuderia shortly thereafter. And with it any chance Ferrari had of winning the title that year. Brabhams year of course.
Photo Credits…
Jesse Alexander Archive, David Phipps, GP Library
Tailpiece…
Nice Stewart BRM P261 cockpit shot en-route to victory (GP Library)
primotipo... 
Great times…