1920 GRAND PRIX SEASON -

27 Giuseppe Campari
SA Italiana Ing. Nicola Romeo
Alfa Romeo 40/60 h

10 Augusto Tarabusi
A. Tarabusi
Diatto 3-Liter

10 Edoardo Weber
E Weber
Fiat Weber

CIRCUITO DEL MUGELLO

Circuito del Mugello (I), 13 June 1920.
6 laps x 64.9 km (40.3 mi) = 389.4 km (242.0 mi)

No.	Driver	Entrant	Car	Type	Engine

	First Category up to 3000 cc
1	Aldo Bonfiglioli	A. Bonfiglioli	Diatto	25 HP-4DA	2.7	S-4
2	Eugenio Giani	S.A. Vetturette Temperino	Temperino	8/10 HP	0.8	V-2	DNA - did not appear
3	Edoardo Weber	E. Weber	Fiat	Weber	2.8	S-4
4	Antonio Ascari	A. Ascari	Fiat	TIPO 2B 15/20HP			DNS - drove car #14
5	Armando Bergonzoni	A. Bergonzoni	Beccaria	18/30 HP Sport	3.0	S-4
6	Luigi Tricca	L. Tricca	Storero	B2 20/30 HP	3.0	S-4
7	Filippo Ardizzone	F. Ardizzone	Ardizzone		2.0	S-4
8	Guido Peyron	G. Peyron	Fiat	Tipo Zero	1.9	S-4
9	Eugenio Silvani	E. Silvani	Bugatti	T13	1.5	S-4	DNA - did not appear
10	Augusto Tarabusi	A. Tarabusi	Diatto	3-Liter	3.0	S-4
11	X	X	X				DNA - did not appear

	Second Category 3001 to 4500 cc
12	Giulio Ansaldi	G. Ansaldi	Nesseldorf	Maserati	3.5	S-4
13	Ferruccio Zaniratti	F. Zaniratti	Fiat	3 Ter	4.4	S-4
14	Antonio Ascari	SA Italiana Ing. Nicola Romeo & C	Alfa Romeo	GP 1914	4.5	S-4
15	Alberto Pedani	A. Pedani	Fiat	3 Ter	4.4	S-4
16	Guido Materazzi	G. Materazzi	Fiat	20/30 HP	4.4	S-4
17	Paolo Pellis	P. Pellis	Fiat	3 Ter	4.4	S-4
18	Giulio Masetti	G. Masetti	Fiat	14B/S57	4.5	S-4
19	Alfieri Maserati	A. Maserati	Nesseldorf	Maserati	3.5	S-4
20	Carlo Masetti	C. Masetti	Fiat	14B/S57	4.5	S-4
21	Carlo Corsini	C. Corsini	Aquila-Itala	unknown

22	Giuseppe Baldoni	G. Baldoni	Nazzaro	GP 1914	4.5	S-4

	Third Category over 4500 cc
23	Guido Meregalli	G. Meregalli	Nazzaro	unknown			DNA - did not appear
24	Ettore Osella	E. Osella	Packard	299	5.0	V-12	DNS - practice crash
25	Gastone Giunti	G. Giunti	Itala	35 hp	4.9	S-4
26	Gastone Brilli-Peri	G. Brilli-Peri	Nazzaro	Tipo 3	4.6	S-4
27	Giuseppe Campari	SA Italiana Ing. Nicola Romeo & C	Alfa Romeo	40/60 hp	6.1	S-4
28	Remo Rossi	R. Rossi	Caesar	C90 Sport	5.3
29	Enzo Ferrari	E. Ferrari	Isotta-Fraschini	100/110 IM	7.2	S-4
30	Mario Bersanti	M. Bersanti	Fiat	S61 120HP	10.0 S-4

Campari wins the Mugello Circuit with Alfa Romeo

by Hans Etzrodt

Mugello followed just two weeks after Indianapolis but was a totally different race. The 24 starters at the free formula Mugello Circuit were split into three categories. The favorites included the Masetti brothers and Brilli-Peri in the large Fiats. Six laps around the twisting 64.9 km mountain course had to be completed. After the first lap, the Fiats of Giulio Masetti and his brother Carlo were in the lead with Campari (Alfa Romeo) third ahead of Zaniratti (Fiat), Ferrari (Isotta-Fraschini) and Maserati (Nesseldorf) sixth, followed by a horde of 14 slower cars. Tricca (Storero) and Materazzi (Fiat) retired, Ardizzone (Ardizzone) and Ascari (Alfa Romeo) crashed. After the 2nd lap the order ot the first three remained the same but Ferrari had passed Zanitatti for 4th place, with Maserati still sixth. The Fiats of Bersanti and Pellis retired including Baldoni (Nazzaro) and Corsini (Aquila). After mid-race Giulio Masetti dropped to third place with brother Carlo now in the lead ahead of Campari. Ferrari was 4th, followed by Maserati, Bonfiglioli (Diatto) and another 5 cars trailing. On lap four Giulio Masetti retired, including Maserati and Ansaldi in Nesseldorf cars. The order was then Carlo Masetti, Campari, Ferrari, Bonfiglio, Tarabusi (Diatto), Brilli-Peri (Nazzaro) and the Fiats of Weber and Peyron. On the 5th lap Carlo Masetti crashed, Bonfiglioli and Ferrari retired which left only five cars in the race, Campari ahead of Tarabusi, Weber, Brilli-Peri and Peyron. That’s how they finished the 6th and last lap.

The races on Circuito del Mugello north of Florence in the Toscana region of central Italy, were also called the "Little Targa Florio" because of its many up and downs and the 1691 turns per lap. Mugello was one of the most important race circuits in Italy and dated back to 1914 when it was called Primo Circuito Toscano. After WW I, the race was held again on June 13, 1920 which was the first race on this 64.9 km route along national and provincial roads with an immensity of turns. From the start at San Piero a Sieve the road was leading anticlockwise along a slight slope through Scarperia at 292 meters altitude, climbing north over 10 kilometers to the Giogo Pass at the considerable height of 879 meters. Then it descended through Rifredo to Firenzuola at 422 meters above sea level. The circuit then turned west past Castro and climbed past La Casetta to Covigliaio at 871 meters. From there the course headed south to reach Futa Pass at 903 meters, which was the highest point. From Futa the road led through Monte Carelli at 314 meters to Maschere from where the circuit snaked east back to start and finish at San Piero a Sieve, 205 meters above sea level,
Six laps of the 64.9 km route had to be completed, a total of 389.4 km. The Automobile Club di Firenze and the A. C, di Bologna sponsored Il Circuito del Mugello. The cars were split into three categories. The 1st category was up to 3-liter, the 2nd category from 3 to 4.5 liter, the 3rd over 4.5 liter. Prizes were 50,000 Lire between cups, plates, medals and money for the first 4 classified in each category.

Entries:
A list of the 30 entries is at the beginning of this report but only 24 cars started. Great credit goes to Alessandro Silva for providing much information about the cars when unknown.
The Diatto of Aldo Bonfiglioli was a 4DA type with 2.7-Liter 4-cylinder engine providing 25 hp while Augusto Tarabusi had a 3-Liter model with 4-cylinder (90 x 116 mm) 2952cc engine producing 80/90 hp. With a weight of 900kg, a top speed of 180 km/h could be reached.
Carlo and Giulio Masetti entered two red Fiat 1914 type 14B/S57 racecars with 4-cylinder (100 x 143 mm) 4492 cc engine, producing 135 hp at 3000 rpm with a race weight of 1150 kg, the estimated maximum speed was 165 km/h.
The #4 car, was a Fiat Tipo 2B 15/20HP, modified by Antonio Ascari. But he drove instead car #14, a 1914 4.5-liter GP Alfa Romeo.
The #7 car of Filippo Ardizzone was called an Ardizzone, a 4-cylinder 2-liter Special, based on Ansaldo.
The #14 Alfa Romeo, was a 1914 Alfa Grand Prix car of which only one car was made with a 4-cylinder (110 x 143 mm) 4490 cc engine, producing 102 hp at 3000 rpm in 1921 and a weight of 1050 kg, driven by Antonio Ascari.
The #16 car, was a 2/30 HP 4.4-liter 4-cylinder Fiat for Guido Materazzi but it was not Emilio Materassi.
The #17 car for Paolo Pellis was a 4.4-Liter 4-cylinder Fiat, "type 3 ter" based on an originally old-fashioned touring model.
The #21 car for Carlo Corsini was an unknown Aquila Italiana, presumably a 4.5-liter straight-six.
The #27 car for Giuseppe Campari, was a 40/60 Alfa based on a 1913 design with a 4-cylinder (110 x 160 mm) 6082 cc engine, producing 82 hp at 2400 rpm, capable of 150 km/h with a racing weight of 1100 kg.
The #19 Nesseldorf was built in Nesseldorf, near Wien (Vienna), Austria, by the Nesseldorfer Wagenbau-Fabriks-Gesellschaft from 1897-1920. An early pre-war model was a 3.3-liter 4-cylinder car, later models were 6-cylinder 40/50 PS and 20/65 PS. After WW I, the borders of Austria were redrawn and Nesseldof became part of Czechoslovakia, renamed Koprivnice. Alfieri Maserati acquired two Nesseldorf, as part of war surplus material, but in shaky condition. He modified he cars to his needs for the Mugello race.

Practice:
On Sunday, June 6th, numerous cars were seen practicing on the difficult hilly course. On Tuesday, official practice started from 5 to 8 in the morning. In those hours the populations of the towns along the course had been warned to abide by the rules adopted by the various local committees not to enter the roads. The drivers covered the dangerous points several times with their cars. Wednesday practiced Ascari, Ferrari and Zaniratti among others. They had a good impression of the route. On Friday morning at around 8.30 during practice, Weber had an accident when a tire burst and he crashed into the wall of a house. Weber was slightly injured and the car was broken, so he had a lot of repair work to be able to start in the race.

Race:
At the San Piero a Sieve finish line were the stands, the pits, the buffets and a large restaurant service. This was the best location to follow the race. The cars started individually in order of their race numbers at intervals of two minutes. However, they were not necessarily released at two-minute intervals. The starting times were determined beforehand according to the race numbers and if cars did not appear at the start (e. g. #4), then car #1 was held to its predetermined time of departure. The start began with Bonfiglioli at 7:04 a.m. and the last was Bersanti who left at 8:04 a.m.