Several sources on the 1953 Buenos Aires GP list Ascari's race number as 12. Farina was #10, Villoresi #14 and Hawthorn #16 all with type 625 FL. Is it possible that Ferrari brought both a 625 FL (with #12) and a 375 F1 (#18) for Ascari for comparison?
I'll be different On January 18th for the Argentine GP I have Ascari #10, Farina #12, Villoresi #14 and Hawthorn #16 For the Buenos Aires GP on February 1, I have this: Farina #10 (625 FL) Villoresi #14 (625 FL) Hawthorn #16 (625 FL) Ascari #18 (375 F1) Marimon #56 (166 xx) Lopes #?? (166 FL) I have this as a photo of the start. Ascari, Villoresi, Farina and Hawthorn on the front row. Image Unavailable, Please Login
Yes. There were four 500s competing in the Argentine GP a fortnight earlier. The engines were replaced with the 625s for the Buenos Aires GP. Ascari set the fastest time in practice with the 375 and, I assume, preferred that.