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1921 AIACR Grand Prix Season

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1921 AIACR Grand Prix Season
Photo Credit: National Library of France.
Champion Constructor: None
Putative Constructor: Ballot (FR,0,1)
Champion Driver: None
Putative Driver: Jules Goux (FR,0,1)
Putative Constructor Entry Specification: Model 3L, 2.97-liter, eight-cylinder inline, DOHC, twin carburetors, four-speed, servo-assist braking, ladder frame, 112 horsepower (Ernest Henry).

The AIACR, seeking conformity for global racing, imposes the same three-liter engine displacement limit upon entries as its American AAA counterpart. Renault leads a group of French manufacturers seeking to terminate the AIACR Grand Prix concept on the grounds that global motorsport brings undesired attention to smaller manufacturers at the expense of itself and the other major racing marques. The movement fortunately fails to take root. New Racing Makes: French Georges Irat. French √Čtablissiments Henry Precloux (EHP). Racing Evolution: Servo-assisted braking for racing (Ballot).

HeM applies the Putative Model to all racing seasons for two primary purposes: First, to effectively normalize all racing seasons for empirical comparison across the decades, and second, to step clear of series organizers which score season championships primarily out of commercial interest or to attract manufacturer participation. The Putative Model simply scores all seasons in the same fashion as a standard track and field meeting, with the only purpose of tracking what takes place at the finishing stripe If the Putative Champion differs from the nominal Series Champion, please note the (SC) notation below.

Ballot33     Goux17
Duesenberg16     Murphy J12
FIAT5     DePalma8
Talbot Darracq2     Chassagne8

Noteworthy 1921 Races

XV Grand Prix de l'Automobile Club de France Le Mans, France1921 XV Grand Prix de l'Automobile Club de France At Le Mans for the renewal of the French Grand Prix (518 kilometers) in July, the race unexpectedly comes to an American Duesenberg under Jimmy Murphy (US) in 4:07:11.4 (average 78.50 mph), under fifteen minutes ahead of a Ballot entry. An American entry, fully benefitting from valuable automotive development during the war years, triumphs in a major European Grand Prix event only for the second time in motorsport history. The French audience stands dumfounded and unamused, refuses to applaud for the American Murphy at the finish, and race officials elect to instead fete Goux at the postrace dinner. French antipathy towards the Germans prompts race officials to ban all Mercedes entries from the event. Photo Credit: Non-Primary: www.motorsport.com.