Looking back on when Formula 1 racers took time out for Indy

Ascari missed the Swiss GP for a tilt at Indy in 1952

The post-F1 career of Guiseppe Farina included an Indy 500 appearance in 1956

Juan Manuel Fangio in 1958

Fangio practiced but never raced 

In 1961, Jack Brabham contested both the Indy 500 and Monaco GP 

Jim Clark in the pits in 1963, when he finished as runner-up

Victory came in his most incredible season, 1965

Stewart’s near miss of 1966 – leading until retiring in the closing stages…

…leaving Graham Hill to take the spoils

Dan Gurney made nine Indy 500 appearances

Jochen Rindt failed to qualify twice

500 pole-winner Peter Revson missed the Monaco GP for Indy in 1972