Its early victories in the Targa Florio and Mille Miglia and others in international competition made the manufacturer a serious competitor in the racing industry.

[8] Motor Trend Classic named the 166 MM Barchetta as number six in their list of the ten "Greatest Ferraris of all time".

[11] In 1949, the 166 MM also won the 24 Hours of Le Mans in the hands of Luigi Chinetti and Lord Selsdon, and so the 166 was the only car ever to win all three races.

The oldest Ferrari car with an undisputed pedigree[citation needed] is s/n 002C, a 166 Spider Corsa which was originally a 159 and is currently owned and driven by James Glickenhaus.

S/n 0052M, a 1950 166 MM Touring Barchetta was uncovered in a barn and was shown in public for the first time since 1959 in the August 2006 issue of Cavallino magazine.