The 41st International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Thursday, May 30, 1957. The event was part of the 1957 USAC National Championship Trail and it was race 3 of 8 in the 1957 World Championship of Drivers.

The 1957 Formula One season was the 11th season of FIA Formula One motor racing. It featured the 1957 World Championship of Drivers, which commenced on 13 January 1957 and ended on 8 September after eight races. Juan Manuel Fangio won his fourth consecutive title, his fifth in total, in his final championship. A feat that would not be beaten until Michael Schumacher in 2003. The season also included numerous non-championship races for Formula One cars. Until the 2006 season, this was the last season during which all championship Grand Prix races were won by cars powered by an engine built by the same constructor that also built chassis.