At the 1950 Grand Prix of Nations in Geneva, the 340 F1 replaced the 275 F1. Its Lampredi V12 had been enlarged to 4.1 liters, accompanied by a De Dion rear axle modeled after the 166 F2, a four-speed gearbox, and a wheelbase extended to 2420 mm. Alberto Ascari was able to keep pace with Juan Manuel Fangio's Alfa Romeo 158, but retired with engine failure. The 340 served merely as an intermediate step in Ferrari's development during 1950.
Summarized from the sources cited below; every figure in the text was automatically verified against the sources.
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Technical details
The 340 F1 received an enlarged version of Lampredi's V12 with a displacement of 4101.66 cm³. The English source quotes 335 hp for this. The rear axle became a De Dion tube construction based on the 166 F2, the transmission was a four-speed gearbox, and the wheelbase grew to 2420 mm, while all other dimensions remained identical. The car demonstrated that it could run at the front, but it remained only the middle chapter in Ferrari's 1950 evolution.
Summarized from the cited sources; every figure was automatically verified against the sources.