Diatto - Modelli

The Diatto boasts a prestigeous table of over 300 podium postions gained in the most important rallies and circuits, conquering and maintaining leading positions for over twenty years, from 1906 to 1930, with its racing models 4 DC, 20 S, 26 S, 30S, 35 SS and 8C-compressor Grand Prix 2-litre and 40 MM 4-litre.

The best racing drivers of the time Alfieri and Ernesto Maserati, Tazio Nuvolari, marquis Diego De Sterlich, ex-racing driver Bugatti, count Gastone Brilli Peri, the champion Alfa Romeo, Cesare Schieppati, Emilio Materassi, Guido Meregalli, Giulio Aymini, countess Maria Antonietta Avanzo, Domenico Gamboni, the brothers Franz and Carlo Alberto Conelli and many others, the Diatto, often with its current models, wins many races in competitions:

in France (24 Heurs du Le Mans, the Coppa del Turismo, the race at Limonest for 2 years, the Cup of Cannes), in Germany (the Herkomer Competition);

in England (6 Hours of Brooklands, Essex Car Club and the Concorso d’Inghilterra), in Russia (Peterbourg-Moscow), in Spain (el Gran Premio del Turismo, el gran Premio de Barcelona for 5 years), in Sweden (the Gran Prix of Sweden), in Switzerland (the Lugano San Gotardo, la Riunione di Ginevra, the kilometre launched at Geneva, the Concorso di Svizzera, the Gran Prix of Europe), in North Africa (the Raid Tunisi-Tripoli);

in Italy (Monza: 24 Ore, Gran Premio d’Autunno, Coppa Internazionale, Coppa dei Re, Coppa Ascari, Gran Premio della Notte) and then Mugello (3 years), Susa-Moncenisio (5 years), Coppa delle colline Pistoiesi (5 years), Coppa delle Tre Venezie (2 years), Circuit at Belfiore, Circuito at Mantua, Criterium at Roma (3 years), Circuit at the Garda Lake (3 years), Gran Premio d’Inverno, Record del Miglio, Milano-San Remo, Circuit at Veneto-Cansiglio, Circuit Principe di Piemonte, Aosta-Gran San Bernardo (5 years), Parma-Poggio of Berceto (5 years), Coppa Monte Nero (3 years), Terni-Passo della Somma (3 years), Coppa Consuma (3 years), Coppa della Sila, Giro di Sicilia, Targa Florio (4 years).

In autumn of 1922, the 1st Gran Prix of Italy, “Gara Inaugurale” on the Monza Motor Racing Track takes place with one Diatto, one Bugatti and one Fiat lined up in the pole positions. To celebrate the 80th anniversary of the “Gara Inaugurale”, the management of the Motor Racing Track at Monza, in November 2002, reconstructs the same starting line-up as that of the 1st Gran Prix i.e. Diatto, Bugatti, Fiat, which the sporting press brings into relief.

Race in two stages. I: Milano-Pavia-Voghera-Tortona-Alessandria-Acqui = 85 miles;

II: Acqui-Savona-Alassio-Sanremo = 113 miles.
Speed trial for 1 km in Sanremo, from stationary start; overall result as sum of 2 times. Competitors: 14;
finishers at Acqui: 13, at Sanremo: 11.

1st class: light cars or vehicles with chassis costing 4,000 to Itl8,000
1st GAGLIARDI Giovanni Diatto-Clément 10/12 HP
1st leg 3:54.58,0; 2nd leg 5:22.15,0; total 9:17.03,0.

1 km race
2nd GAGLIARDI Giovanni Diatto-Clément 4.46,2

TOURISTGOLD CUP(I)15-25 May 1906

Auto Club Milan. Rally in 11 stages over 2,460 miles. Route: Milan-Bologna, Bologna-Rome, Rome-
Naples, Naples-Rome, Rome-Florence, Florence-Genova, Genova-Turin, Turin-Milan, Milan-Udine, Udine-
Brescia, Brescia-Milan. Speed: min. 30 kph, max. 40 kph. Competitors: 48, representing 19 auto
manufacturers. With the participation of Vittorio Diatto.

Overall result
2nd VERCELLONE Gregorio Diatto-Clément 20/24 HP
13th COLENET Léon Diatto-Clément 20/24 HP

The Diatto-Clément 20/24 HP driven by Vercellone won a prize of Itl 5,000, the President’s Cup (Milan A.C.), the President’s
Gold Medal (Naples A.C.), the Award of the Naples Società Italiana Darracq, a prize from the Rome A.C. and the prize of
the Veloce Club, Perugia.

HERKOMER COMPETITION (D)5-12 June 1906

Route of 1,125 miles from Frankfurt to Innsbruck, climbing at Semmering and speed trial on a 3 mile track.
Competitors: 135, only one Diatto-Clément.

Overall result
1st n. a. Diatto-Clément 20/24 HP
Winner of the Gold Medal and Plaque for finishing the race with no penalties.

LUGANO-SAN GOTTARDO COMPETITION (CH) 19 August 1906

Overall result
1st n. a. Diatto-Clément 20/24 HP
2nd n. a. Diatto-Clément 20/24 HP

BOLOGNA GRANDPRIX (I)October 1906

Organized by: Emilian Automobile Club.

Small car class
1st BUZIO Felice Diatto-Clément 12/16 HP

Light car class
1st VERCELLONE Gregorio Diatto-Clément 20/24 HP

CANNES CUP (F)9 March 1907

Official Consumption Record.

Overall result
1st n. a. Diatto-Clément 20/25 HP

With GT body work, the Diatto-Clément consumed 10 litres in 100 km, taking first place.

SPEED CUP,BRESCIA(I)2 September 1907

Route: Brescia-Montichiari-Castiglione-Lonato-Brescia, 8 laps of 40 miles = 320 miles.
Formula: 30 litres of fuel every 100 km (62.5 miles).
Competitors: 14, finishers: 6.
Withdrew: Buzio Felice (mechanic: Restelli) in the Diatto-Clément, on the 3rd lap.

CONEGLIANO VENETOCUP (I)6 October 1907

Route: Godega-Ponte dei Giai, 5 km.
Flying start.

1st class: chassis Itl 10,000
2nd ANGELI Guido Diatto-Clément 12/16 HP 4.13,0
3rd ZILIOTTO Diatto-Clément 4.27,6

VERONA RACE TRACK (I)15 March 1908

Route: Crocioni di Bussolengo-Croce Bianca-Bussolengo-Crocioni-Borgo Milan, arrival at 1.2 km from
San Zeno.
Organizing Committee: President Leonino of Zara, Dr Nello Prosperini, Dr Guido Ravà Sforni, Colonel
Pietro Albertini, Attilio Angeli, Colonel Vittorio Cavazzocca.
Class prizes: winner: vermeille plaque, 2nd place: silver plaque, winning mechanic: Itl 100.
Start: 13, finished: 8.
Withdrew: Compostella Eugenio driving a Diatto-Clément, close to Croce Bianca.

1st class: max. bore 110 mm, weight 950 kg
3rd VACCARI Roberto Diatto-Vaccari 20.25,0

Padova-Bovolenta straight, 10 km record.
Start: 29, finishers: 27.

2nd class: max bore 90 mm, minimum weight 750 kg
6th MERLUZZI Antonio Diatto-Clément
Times: out 9.16,0; back 8.52,8; average 9.04,4.

3rd class: max bore 100 mm, min. weight 850 kg
3rd ANGELI Guido Diatto-Clément
Times: out 11.21,8; back 8.20,8; average 9.51,3.
Due to the lack of policing, a huge crowd moved onto the road, causing several accidents.
Longoni, driving a Junior, crashed to avoid hitting a truck crossing the road at Casalserugo.
The driver walked away unscathed but the mechanic, Antonio Janicelli of Milan, was seriously injured.
After the finishing line, driver Dal Torso of Udine steered into a crowd to avoid hitting a car still on the
road. One spectator was killed and 6 injured.
The accident led to questions in the House, raised by the M.P. Alessio.

ST.PETERSBURG-MOSCOW (RUS) 19 May 1908

Distance: 430 miles. 9 finished, 19 withdraw.

Overall result
6th PRIMAVESI Diatto-Clément no. 25 13:08.12,0

MILETIME TRIAL, MODENA (I)9 May 1909

Modena-Navicello straight, 1 mile.
Competitors: 28, finishers: 25.

4th class
11th COLORNI Giulio Diatto-Clément 1.02,8

BROOKLANDS (GB) 1910

England. Diatto took part in a speed trial on the Brooklands race track, with an experimental streamlined
chassis and 15.9 litre engine.

1STPARMA-POGGIO DIBERCETO(I)28 September 1913

Uphill event organized by Pro-Parma.
Route: Parma (52 m), Fornova Taro km 23 ( 155 m), Monte Cassio pass km 36 (882 m), Berceto km 52 (790
m), Poggio di Berceto km 53 (841 m). Competitors: 26, finishers: 24.

2,500 cc class
3rd REZZAGHI C. Diatto 55.19,0

9THTARGAFLORIO(I)24-25 May 1914

Organized by the Sicilian Auto Club.
Sicilian rally, Palermo.
1st leg:269 miles: Palermo-Messina-Catania-Siracusa.
2nd leg: 340 miles: Siracusa-Noto-Modica-Girgenti-Marsala-Trapani-Alcamo-Palermo.
Total: 609 miles. Competitors: 31, finishers: 8 (finishers after 1st leg: 19).

Overall result
8th RIGOLETTI N. Diatto

TUSCANAUTOMOBILE RACETRACK (I)21 June 1914

Route: San Pietro a Sieve-Scarperia-Giogo-Fiorenzuola-Covigliano-Passo della Futa-Montecarelli-San
Pietro a Sieve.
4 lap of 40 miles = 160 miles. Min. time 6 hours (average 27 mph), max. 8.4 hours.
Tolerance: 1 minute under or over.
Competitors: 40, finishers: 32.

1st category: 2,000 cc class
1st SILVANI Eugenio 2-litre Diatto

2nd category: 3,500 cc class
4th SPADONI Augusto 3-litre Diatto

2ND PARMA-POGGIO DI BERCETO (I)25 June 1914

Uphill race organized by Pro-Parma.
Route: Parma-Fornova Taro-Poggio di Berceto, a total of 33 miles. Competitors: 34, finishers: 24.

2nd category: class up to 1,500/2,500 cc
15th GATTI Guido Diatto 49.07,0
17th REZZAGHI C. Diatto 55.03,0

10THTARGAFLORIO(I)23 November 1919

Organized by the Sicilian Auto Club.
4 laps of the Madonie medium race track, a total of 270 miles.
Route: Cerda-Caltavuturo-Polizzi-Collesano-Campofelice-Cerda, 67.5 miles.
Competitors: 20, finishers 5.

Overall result
3rd GAMBONI Domenico Diatto 8:33.28,4

MUGELLO RACETRACK (I)13 June 1920

Organized by Florence Auto Club.
In 1914, another raced took place on this track, called for the occasion the Tuscan Automobile Race Track

-see above.
Total of 6 laps of 40 miles = 240 miles.
Competitors: 24, finishers: 5.

Race category: 3,000/over 3,000 cc class

2nd TARABUSI Augusto 3-litre Diatto 7:40.35,6
Average speed of around 40 mph.

Uphill race organized by Aosta Auto Club.
Route: Aosta-Gran San Bernardo (Nursing Home).
Distance: 19 miles, climb: 6,167 feet.

Race class
1st CONELLI Carlo Alberto 3-litre Diatto

11THTARGAFLORIO(I)20 October 1920

Organized by the Sicilian Auto Club. 4 laps of the Madonie for a total race distance of 270 miles. Route:
Cerda-Caltavuturo-Polizzi-Collesano-Campofelice-Cerda. The competitors included: Peter De Paolo and
Peyron in a Diatto.

1STROMECRITERIUM(I)15 January 1921

Uphill race organized by Rome Auto Club. Vermicino-Frascati-Rocca di Papa-Madonna del Tufo. 9.375
miles, climb: 1,525 feet.

Race class
3rd GAMBONI Domenico Diatto 3,000 13.56,0

12THTARGAFLORIO (I)29 May 1921

Organized by the Sicilian Auto Club.
4 laps of the Madonie for a total race distance of 270 miles. Cerda-Caltavuturo-Polizzi-Collesano-
Campofelice-Cerda.
The competitors included Domenico Gamboni in a Diatto 4 DS. He did not finish.

Overall result
16th GHIA Diatto

6TH CONSUMACUP (I)11 June 1921

Uphill race organized by Florence Auto Club.
Pontassieve-Passo della Consuma, 9.275 miles, climb: 3,000 feet.
Among the competitors: Meregalli in a Diatto.

1STBIELLA-OROPA(I)17 July 1921

Uphill race organized by Biella Auto Club.
Route: Biella-Santuario d’Oropa.

6.9miles, climb: about 2,500 feet.

Race class
1st GAMBONI Domenico 3-litre Diatto 11.41,6
Average km/h 35.306 mph.

6THSUSA-MONCENISIO(I)21 August 1921

Uphill race organized by the Turin Auto Club. Distance: 13.75 miles.

1,500 cc class
1st CONELLI Franz Diatto-Bugatti 24,4

GENTLEMEN’sGRANDPRIX,BRESCIA (I)11 September 1921

Organized by the Brescia Auto Club.
Brescia race track. Route: Fascia d’Oro-bivio Ghedi-Montichiari-Fascia d’Oro.
20 laps of 10.8 miles = total of 216 miles.

Class A
1st CONELLI Carlo Alberto Diatto-Bugatti 3:10.12,0
Average speed of 68.218 mph.
Fastest lap: Conelli in 8.58,4 at 72.759 mph.

A Diatto S, driven by Ed Parker and Ralph di Palma, took part.

2NDALPINECUP(I)1922

International rally organized by U.C.A.M. – Unione Ciclo Auto Moto.
Cesare Schieppati took part, driving a Diatto 20.

CENTRAL ITALY RACE TRACK (I)1922

Class up to 3,000 cc
1st GAMBONI Domenico 3-litre Diatto

13THTARGAFLORIO(I)2 April 1922

Track: Madonie, total 269 miles.
Competitors: 42, including three 2-litre Diatto 20 S Type with short touring chassis in the 1,501-2,000
class. None finish (drivers: Massola, Guido Meregalli, Domenico Gamboni).

6TH PARMA-POGGIO DI BERCETO (I)14 May 1922

Uphill race organized by Pro-Parma.
Distance: 31.8 miles.

2,000 cc class
1st MEREGALLI Guido Diatto 20 S

MUGELLORACETRACK(I)18 June 1922

Florence Auto Club. Route: S. Pietro a Sieve-Scarperia-Giogo-Fiorenzuola-Montecarelli-S. Pietro a Sieve.
6 laps of 40.56 miles = total 243.36 miles.

On the start line: Bacini driving a 2-litre Diatto.

7THSUSA-MONCENISIO(I)23 July 1922

Uphill race organized by Turin Auto Club. Distance: 14.3 miles; Route: Susa-Moncenisio, climb of over
4,000 feet.

2,000 cc class
2nd PONTICELLI Diatto 20
Just three seconds behind the class winner.

ITALIANGRANDPRIX(I)10 September 1922

Monza race track. 80 laps of 6.25 miles = 500 miles.
Competitors: 8, finishers: 3.
Meregalli drove a 2-litre Diatto 20 S 2 (valve failure on the 52nd lap) and Alfieri Maserati – assisted by
Ernesto Maserati – drove a Diatto 20 S (accident at Lesmo corner), with average speeds of over 100 mph.

GARDALAKERACETRACK (I)15 October 1922

Organized by Brescia Auto Club.
Distance: Salò-Zette-Tormini-Salò = 7.725 mph.
20 laps of 7.725 miles = total 154.5 miles.
Competitors:16, finishers 10.

Overall result
1st MEREGALLI Guido Diatto 20
Time 3:01.38,0 -average 50.523 mph.
Fastest lap: Meregalli (lap 13) in 8.58,6 -at 51.633 mph.

3RD ROME CRITERIUM (I)15 October 1922

Uphill race organized by Rome Auto Club. Vermicino-Rocca di Papa.
Distance: 9.3 miles, climb: 1,500 feet.

2,000 cc class
1st GAMBONI Domenico 2-litre Diatto 11.48,0
Average speed of 47.053 mph.

AUTUMN GRAND PRIX (I)22 October 1922

Monza race track. 40 laps of 6.25 miles = 250 miles (full circuit).
Competitors: 22, finishers: 8.

3,000 cc class
1st MASERATI Alfieri 3-litre Diatto 3:11.19,6
Average speed of 78.339 mph, outright winner.

6THFLORIO CUP(I)19 November 1922

Race track: Madonie. Route: Cerda-Caltavuturo-Polizzi-Collesano-Campofelice-Cerda. 4 laps of 67.5
miles = total of 270 miles.
3 Diatto at the start line. None finish. Alfieri Maserati broke the sump when lying in third position, Paolo
Arnone had a puncture and then mechanical problems. Meregalli crashed after 10 miles, breaking his arm.
The mechanic was killed.


	VICTORIES

The Diatto boasts a prestigeous table of over 300 podium postions gained in the most important rallies and circuits, conquering and maintaining leading positions for over twenty years, from 1906 to 1930, with its racing models 4 DC, 20 S, 26 S, 30S, 35 SS and 8C-compressor Grand Prix 2-litre and 40 MM 4-litre. The best racing drivers of the time Alfieri and Ernesto Maserati, Tazio Nuvolari, marquis Diego De Sterlich, ex-racing driver Bugatti, count Gastone Brilli Peri, the champion Alfa Romeo, Cesare Schieppati, Emilio Materassi, Guido Meregalli, Giulio Aymini, countess Maria Antonietta Avanzo, Domenico Gamboni, the brothers Franz and Carlo Alberto Conelli and many others, the Diatto, often with its current models, wins many races in competitions: in France (24 Heurs du Le Mans, the Coppa del Turismo, the race at Limonest for 2 years, the Cup of Cannes), in Germany (the Herkomer Competition); in England (6 Hours of Brooklands, Essex Car Club and the Concorso d’Inghilterra), in Russia (Peterbourg-Moscow), in Spain (el Gran Premio del Turismo, el gran Premio de Barcelona for 5 years), in Sweden (the Gran Prix of Sweden), in Switzerland (the Lugano San Gotardo, la Riunione di Ginevra, the kilometre launched at Geneva, the Concorso di Svizzera, the Gran Prix of Europe), in North Africa (the Raid Tunisi-Tripoli); in Italy (Monza: 24 Ore, Gran Premio d’Autunno, Coppa Internazionale, Coppa dei Re, Coppa Ascari, Gran Premio della Notte) and then Mugello (3 years), Susa-Moncenisio (5 years), Coppa delle colline Pistoiesi (5 years), Coppa delle Tre Venezie (2 years), Circuit at Belfiore, Circuito at Mantua, Criterium at Roma (3 years), Circuit at the Garda Lake (3 years), Gran Premio d’Inverno, Record del Miglio, Milano-San Remo, Circuit at Veneto-Cansiglio, Circuit Principe di Piemonte, Aosta-Gran San Bernardo (5 years), Parma-Poggio of Berceto (5 years), Coppa Monte Nero (3 years), Terni-Passo della Somma (3 years), Coppa Consuma (3 years), Coppa della Sila, Giro di Sicilia, Targa Florio (4 years). In autumn of 1922, the 1st Gran Prix of Italy, “Gara Inaugurale” on the Monza Motor Racing Track takes place with one Diatto, one Bugatti and one Fiat lined up in the pole positions. To celebrate the 80th anniversary of the “Gara Inaugurale”, the management of the Motor Racing Track at Monza, in November 2002, reconstructs the same starting line-up as that of the 1st Gran Prix i.e. Diatto, Bugatti, Fiat, which the sporting press brings into relief. MILANO-SANREMOCOMPETITION(I)4-5 April 1906 Race in two stages. I: Milano-Pavia-Voghera-Tortona-Alessandria-Acqui = 85 miles; II: Acqui-Savona-Alassio-Sanremo = 113 miles. Speed trial for 1 km in Sanremo, from stationary start; overall result as sum of 2 times. Competitors: 14; finishers at Acqui: 13, at Sanremo: 11. 1st class: light cars or vehicles with chassis costing 4,000 to Itl8,000 1st GAGLIARDI Giovanni Diatto-Clément 10/12 HP 1st leg 3:54.58,0; 2nd leg 5:22.15,0; total 9:17.03,0. 1 km race 2nd GAGLIARDI Giovanni Diatto-Clément 4.46,2 TOURISTGOLD CUP(I)15-25 May 1906 Auto Club Milan. Rally in 11 stages over 2,460 miles. Route: Milan-Bologna, Bologna-Rome, Rome- Naples, Naples-Rome, Rome-Florence, Florence-Genova, Genova-Turin, Turin-Milan, Milan-Udine, Udine- Brescia, Brescia-Milan. Speed: min. 30 kph, max. 40 kph. Competitors: 48, representing 19 auto manufacturers. With the participation of Vittorio Diatto. Overall result 2nd VERCELLONE Gregorio Diatto-Clément 20/24 HP 13th COLENET Léon Diatto-Clément 20/24 HP The Diatto-Clément 20/24 HP driven by Vercellone won a prize of Itl 5,000, the President’s Cup (Milan A.C.), the President’s Gold Medal (Naples A.C.), the Award of the Naples Società Italiana Darracq, a prize from the Rome A.C. and the prize of the Veloce Club, Perugia. HERKOMER COMPETITION (D)5-12 June 1906 Route of 1,125 miles from Frankfurt to Innsbruck, climbing at Semmering and speed trial on a 3 mile track. Competitors: 135, only one Diatto-Clément. Overall result 1st n. a. Diatto-Clément 20/24 HP Winner of the Gold Medal and Plaque for finishing the race with no penalties. LUGANO-SAN GOTTARDO COMPETITION (CH) 19 August 1906 Overall result 1st n. a. Diatto-Clément 20/24 HP 2nd n. a. Diatto-Clément 20/24 HP BOLOGNA GRANDPRIX (I)October 1906 Organized by: Emilian Automobile Club. Small car class 1st BUZIO Felice Diatto-Clément 12/16 HP Light car class 1st VERCELLONE Gregorio Diatto-Clément 20/24 HP CANNES CUP (F)9 March 1907 Official Consumption Record. Overall result 1st n. a. Diatto-Clément 20/25 HP With GT body work, the Diatto-Clément consumed 10 litres in 100 km, taking first place. VERONACUP(I)19 March 1907 5 km race. Start at ninth km of the Pozzo-Tombetta straight, arrival at 4th km. Prizes: 1st place: Itl 1,000, 2nd place: Itl 500. 1st class 3rd VACCARI Roberto Diatto-Clément 12/16 HP 5.00,8 2NDTARGAFLORIO(I)22 April 1907 Organized by: the Committee for Sporting Events and Festivities. Circuit: Madonie, over km 148.823 x 3 laps = total km 446.469. Start and finish: Bofornello. Total prize money: Itl 100,000. Competitors: 56, 45 started, 28 finished. Overall result 18th BUZIO Felice Diatto-Clément 9:20.05,0 ONEKMRACE(I)23 July 1907 Oderzo, flying start: Treviso-Udine. Organized by: Opitergina Sports Union. 1st class: chassis up to Itl 10,000 Gold Medal to the winner 3rd ZILIOTTO Diatto-Clément 54,2 SPEED CUP,BRESCIA(I)2 September 1907 Route: Brescia-Montichiari-Castiglione-Lonato-Brescia, 8 laps of 40 miles = 320 miles. Formula: 30 litres of fuel every 100 km (62.5 miles). Competitors: 14, finishers: 6. Withdrew: Buzio Felice (mechanic: Restelli) in the Diatto-Clément, on the 3rd lap. CONEGLIANO VENETOCUP (I)6 October 1907 Route: Godega-Ponte dei Giai, 5 km. Flying start. 1st class: chassis Itl 10,000 2nd ANGELI Guido Diatto-Clément 12/16 HP 4.13,0 3rd ZILIOTTO Diatto-Clément 4.27,6 VERONA RACE TRACK (I)15 March 1908 Route: Crocioni di Bussolengo-Croce Bianca-Bussolengo-Crocioni-Borgo Milan, arrival at 1.2 km from San Zeno. Organizing Committee: President Leonino of Zara, Dr Nello Prosperini, Dr Guido Ravà Sforni, Colonel Pietro Albertini, Attilio Angeli, Colonel Vittorio Cavazzocca. Class prizes: winner: vermeille plaque, 2nd place: silver plaque, winning mechanic: Itl 100. Start: 13, finished: 8. Withdrew: Compostella Eugenio driving a Diatto-Clément, close to Croce Bianca. 1st class: max. bore 110 mm, weight 950 kg 3rd VACCARI Roberto Diatto-Vaccari 20.25,0 PADOVA-BOVOLENTA(I)10 April 1908 Padova-Bovolenta straight, 10 km record. Start: 29, finishers: 27. 2nd class: max bore 90 mm, minimum weight 750 kg 6th MERLUZZI Antonio Diatto-Clément Times: out 9.16,0; back 8.52,8; average 9.04,4. 3rd class: max bore 100 mm, min. weight 850 kg 3rd ANGELI Guido Diatto-Clément Times: out 11.21,8; back 8.20,8; average 9.51,3. Due to the lack of policing, a huge crowd moved onto the road, causing several accidents. Longoni, driving a Junior, crashed to avoid hitting a truck crossing the road at Casalserugo. The driver walked away unscathed but the mechanic, Antonio Janicelli of Milan, was seriously injured. After the finishing line, driver Dal Torso of Udine steered into a crowd to avoid hitting a car still on the road. One spectator was killed and 6 injured. The accident led to questions in the House, raised by the M.P. Alessio. ST.PETERSBURG-MOSCOW (RUS) 19 May 1908 Distance: 430 miles. 9 finished, 19 withdraw. Overall result 6th PRIMAVESI Diatto-Clément no. 25 13:08.12,0 MILETIME TRIAL, MODENA (I)9 May 1909 Modena-Navicello straight, 1 mile. Competitors: 28, finishers: 25. 4th class 11th COLORNI Giulio Diatto-Clément 1.02,8 BROOKLANDS (GB) 1910 England. Diatto took part in a speed trial on the Brooklands race track, with an experimental streamlined chassis and 15.9 litre engine. 1STPARMA-POGGIO DIBERCETO(I)28 September 1913 Uphill event organized by Pro-Parma. Route: Parma (52 m), Fornova Taro km 23 ( 155 m), Monte Cassio pass km 36 (882 m), Berceto km 52 (790 m), Poggio di Berceto km 53 (841 m). Competitors: 26, finishers: 24. 2,500 cc class 3rd REZZAGHI C. Diatto 55.19,0 9THTARGAFLORIO(I)24-25 May 1914 Organized by the Sicilian Auto Club. Sicilian rally, Palermo. 1st leg:269 miles: Palermo-Messina-Catania-Siracusa. 2nd leg: 340 miles: Siracusa-Noto-Modica-Girgenti-Marsala-Trapani-Alcamo-Palermo. Total: 609 miles. Competitors: 31, finishers: 8 (finishers after 1st leg: 19). Overall result 8th RIGOLETTI N. Diatto TUSCANAUTOMOBILE RACETRACK (I)21 June 1914 Route: San Pietro a Sieve-Scarperia-Giogo-Fiorenzuola-Covigliano-Passo della Futa-Montecarelli-San Pietro a Sieve. 4 lap of 40 miles = 160 miles. Min. time 6 hours (average 27 mph), max. 8.4 hours. Tolerance: 1 minute under or over. Competitors: 40, finishers: 32. 1st category: 2,000 cc class 1st SILVANI Eugenio 2-litre Diatto 2nd category: 3,500 cc class 4th SPADONI Augusto 3-litre Diatto 2ND PARMA-POGGIO DI BERCETO (I)25 June 1914 Uphill race organized by Pro-Parma. Route: Parma-Fornova Taro-Poggio di Berceto, a total of 33 miles. Competitors: 34, finishers: 24. 2nd category: class up to 1,500/2,500 cc 15th GATTI Guido Diatto 49.07,0 17th REZZAGHI C. Diatto 55.03,0 10THTARGAFLORIO(I)23 November 1919 Organized by the Sicilian Auto Club. 4 laps of the Madonie medium race track, a total of 270 miles. Route: Cerda-Caltavuturo-Polizzi-Collesano-Campofelice-Cerda, 67.5 miles. Competitors: 20, finishers 5. Overall result 3rd GAMBONI Domenico Diatto 8:33.28,4 MUGELLO RACETRACK (I)13 June 1920 Organized by Florence Auto Club. In 1914, another raced took place on this track, called for the occasion the Tuscan Automobile Race Track -see above. Total of 6 laps of 40 miles = 240 miles. Competitors: 24, finishers: 5. Race category: 3,000/over 3,000 cc class 2nd TARABUSI Augusto 3-litre Diatto 7:40.35,6 Average speed of around 40 mph. 1ST AOSTA-GRAN SANBERNARDO (I)29 August 1920 Uphill race organized by Aosta Auto Club. Route: Aosta-Gran San Bernardo (Nursing Home). Distance: 19 miles, climb: 6,167 feet. Race class 1st CONELLI Carlo Alberto 3-litre Diatto 11THTARGAFLORIO(I)20 October 1920 Organized by the Sicilian Auto Club. 4 laps of the Madonie for a total race distance of 270 miles. Route: Cerda-Caltavuturo-Polizzi-Collesano-Campofelice-Cerda. The competitors included: Peter De Paolo and Peyron in a Diatto. 1STROMECRITERIUM(I)15 January 1921 Uphill race organized by Rome Auto Club. Vermicino-Frascati-Rocca di Papa-Madonna del Tufo. 9.375 miles, climb: 1,525 feet. Race class 3rd GAMBONI Domenico Diatto 3,000 13.56,0 12THTARGAFLORIO (I)29 May 1921 Organized by the Sicilian Auto Club. 4 laps of the Madonie for a total race distance of 270 miles. Cerda-Caltavuturo-Polizzi-Collesano- Campofelice-Cerda. The competitors included Domenico Gamboni in a Diatto 4 DS. He did not finish. Overall result 16th GHIA Diatto 6TH CONSUMACUP (I)11 June 1921 Uphill race organized by Florence Auto Club. Pontassieve-Passo della Consuma, 9.275 miles, climb: 3,000 feet. Among the competitors: Meregalli in a Diatto. 1STBIELLA-OROPA(I)17 July 1921 Uphill race organized by Biella Auto Club. Route: Biella-Santuario d’Oropa. 6.9miles, climb: about 2,500 feet. Race class 1st GAMBONI Domenico 3-litre Diatto 11.41,6 Average km/h 35.306 mph. 6THSUSA-MONCENISIO(I)21 August 1921 Uphill race organized by the Turin Auto Club. Distance: 13.75 miles. 1,500 cc class 1st CONELLI Franz Diatto-Bugatti 24,4 GENTLEMEN’sGRANDPRIX,BRESCIA (I)11 September 1921 Organized by the Brescia Auto Club. Brescia race track. Route: Fascia d’Oro-bivio Ghedi-Montichiari-Fascia d’Oro. 20 laps of 10.8 miles = total of 216 miles. Class A 1st CONELLI Carlo Alberto Diatto-Bugatti 3:10.12,0 Average speed of 68.218 mph. Fastest lap: Conelli in 8.58,4 at 72.759 mph. 2ND ROME CRITERIUM (I)15 October 1921 Uphill race organized by the Rome Auto Club. Distance: 6.5 miles; Frascati-Rocca di Papa, climb of over 1,000 feet. Race class, Tourism 1st GAMBONI Domenico 3-litre Diatto 8.13,2 Average speed: 46.532 mph. INDIANAPOLIS (USA)1920s A Diatto S, driven by Ed Parker and Ralph di Palma, took part. 2NDALPINECUP(I)1922 International rally organized by U.C.A.M. – Unione Ciclo Auto Moto. Cesare Schieppati took part, driving a Diatto 20. CENTRAL ITALY RACE TRACK (I)1922 Class up to 3,000 cc 1st GAMBONI Domenico 3-litre Diatto 13THTARGAFLORIO(I)2 April 1922 Track: Madonie, total 269 miles. Competitors: 42, including three 2-litre Diatto 20 S Type with short touring chassis in the 1,501-2,000 class. None finish (drivers: Massola, Guido Meregalli, Domenico Gamboni). 6TH PARMA-POGGIO DI BERCETO (I)14 May 1922 Uphill race organized by Pro-Parma. Distance: 31.8 miles. 2,000 cc class 1st MEREGALLI Guido Diatto 20 S MUGELLORACETRACK(I)18 June 1922 Florence Auto Club. Route: S. Pietro a Sieve-Scarperia-Giogo-Fiorenzuola-Montecarelli-S. Pietro a Sieve. 6 laps of 40.56 miles = total 243.36 miles. On the start line: Bacini driving a 2-litre Diatto. 7THSUSA-MONCENISIO(I)23 July 1922 Uphill race organized by Turin Auto Club. Distance: 14.3 miles; Route: Susa-Moncenisio, climb of over 4,000 feet. 2,000 cc class 2nd PONTICELLI Diatto 20 Just three seconds behind the class winner. ITALIANGRANDPRIX(I)10 September 1922 Monza race track. 80 laps of 6.25 miles = 500 miles. Competitors: 8, finishers: 3. Meregalli drove a 2-litre Diatto 20 S 2 (valve failure on the 52nd lap) and Alfieri Maserati – assisted by Ernesto Maserati – drove a Diatto 20 S (accident at Lesmo corner), with average speeds of over 100 mph. GARDALAKERACETRACK (I)15 October 1922 Organized by Brescia Auto Club. Distance: Salò-Zette-Tormini-Salò = 7.725 mph. 20 laps of 7.725 miles = total 154.5 miles. Competitors:16, finishers 10. Overall result 1st MEREGALLI Guido Diatto 20 Time 3:01.38,0 -average 50.523 mph. Fastest lap: Meregalli (lap 13) in 8.58,6 -at 51.633 mph. 3RD ROME CRITERIUM (I)15 October 1922 Uphill race organized by Rome Auto Club. Vermicino-Rocca di Papa. Distance: 9.3 miles, climb: 1,500 feet. 2,000 cc class 1st GAMBONI Domenico 2-litre Diatto 11.48,0 Average speed of 47.053 mph. AUTUMN GRAND PRIX (I)22 October 1922 Monza race track. 40 laps of 6.25 miles = 250 miles (full circuit). Competitors: 22, finishers: 8. 3,000 cc class 1st MASERATI Alfieri 3-litre Diatto 3:11.19,6 Average speed of 78.339 mph, outright winner. 6THFLORIO CUP(I)19 November 1922 Race track: Madonie. Route: Cerda-Caltavuturo-Polizzi-Collesano-Campofelice-Cerda. 4 laps of 67.5 miles = total of 270 miles. 3 Diatto at the start line. None finish. Alfieri Maserati broke the sump when lying in third position, Paolo Arnone had a puncture and then mechanical problems. Meregalli crashed after 10 miles, breaking his arm. The mechanic was killed. 14THTARGAFLORIO(I)15 April 1923 Race track: Madonie. 4 laps of 67.5 miles = total of 270 miles. Competitors:17, finishers: 8. Alfieri Maserati driving a 3-litre Diatto 20 S is forced to withdraw on the 3rd lap, while lying second. Overall result 8th MORA 2-litre Diatto 1ST CREMONA RACETRACK (I)6 May 1923 Cremona Auto Club. Route: Cremona-Piadena-Palvareto-Cremona. 3 laps of 39.337 miles = 118 miles. Competitors:15, finishers: 8. Tazio Nuvolari took part, driving a 3-litre Diatto, with his mechanic Telemaco Vareschi. Race category: 1,500/3,000 cc class 2nd MASERATI Alfieri Diatto 20 S 1:37.21,4 7TH PARMA-POGGIO DI BERCETO (I)13 May 1923 Uphill race organized by Pro-Parma. Parma-Fornova Taro-Monte Cassio-Berceto-Poggio di Berceto; 31.875 miles, climb of 2700 feet. TazioNuvolaridrove a 3-litreDiatto.