1955 Formula One season

The 1955 Formula One season was the sixth season of FIA Formula One motor racing. It featured the 1955 World Championship of Drivers, which commenced on January 16, 1955 and ended on September 11 after seven races. Juan Manuel Fangio won his second consecutive World Championship title in a season that was curtailed by tragedies.

The season also included a number of non-championship Formula One races.

Season summary
Mercedes drivers again dominated the championship, with Fangio taking four races, and his new team mate Moss the British Grand Prix. Ferrari won at Monaco after the Mercedes broke down and Ascari crashed into the harbour. Although Ascari was apparently unscathed, the double World Champion crashed fatally at Monza while testing sportscars four days later.

The disaster at the 24 Hours of Le Mans on 11 June which killed Pierre Levegh and over 80 spectators led to the cancellations of the French, German, Spanish and Swiss Grands Prix.

Moss' win at Aintree took the title battle to the final round, fittingly at Monza. A mechanical failure ended Moss's challenge, and an entertaining battle, handing Fangio his third title.

Teams and drivers
The following teams and drivers competed in the 1955 FIA World Championship.

1955 Drivers Championship final standings

 * Italics indicate fastest lap (1 point awarded – point shared equally between drivers sharing fastest lap)
 * Bold indicates pole position
 * † = Car driven by more than one driver
 * Championship points were awarded on an 8-6-4-3-2 basis for the first five places at each race. One point was awarded for fastest race lap at each race.
 * Only the best 5 results counted towards the Championship. Numbers without parentheses are Championship points; numbers in parentheses are total points scored.

Non-Championship race results
Other Formula One races also held in 1955, which did not count towards the World Championship.