Automobiles Railroad locomotives and equipment (Milan) Cars and Sports Cars (Brescia, before 1934) Commercial Vehicles (Brescia, 1925)
Officine Meccaniche or OM was an Italian car and truck manufacturing company, founded in 1918 in Milan as Societa Anonima Officine Meccaniche. It disappeared as such in 1975 subsumed into Iveco, but still exist as a forklift builder.
The inception of the company had resulted from the merger of two companies, Grondona Comi & C and Miani Silvestri & C.
Originally, OM manufactured railway stock. Car production started in 1918, using the plant of the former Brixia-Zust (Brixia-Züst), just after OM took over Zust car company of Brescia, Northern Italy. The first OM car, Tipo S305, primarily an old Zust model, appeared in 1918 with a 4712 cc four-cylinder side-valve in-line engine.
Commercial vehicle manufacturersince its acquisition byFiatin 1933.The biggestholdersofOMwas theTitano1937.
In 1946,OMlauncheda revolutionarytruck with acab, theOrioneequipped with aV890 °with a displacement of10,460cm3 developing130hp
OMbaptizedthe mid-rangevehicleswith namesof animals, allowing the Italiansto callseries "Zoo" In 1950OMpresents its firstmediumtrucktonnage,Leoncino. Itwas an immediate successbecause ithas awidecaband arobustchassis withan enginewith proven reliability.
The other modelsare linkedto avery fast pacefor the time,but it wasalso to meet theneeds ofreconstruction oftransport companies: theTigrottoin 1957,Tigerin 1958,,theLupettoin 1959,theCerbiattoandDaino1964,theOrsettoin 1967.
All thesemedium trucksremainedcatalogOMfor two decades. In 1951,OMalso hasseveral largemotor carriers, the Tauruswasreplaced by theSuperTaurusin 1953. In 1953OMprovides avehiclefor exceptional transportandconstruction sites andtakes the nameTitano(Titan) 6x48x4version. In 1955, OM SuperOrioneOrionereplaces the old1946andOMlaunches theTigerin 1958,allwith advancedbooths. In 1961,OMpresents the new generationofTitano, OM Titano2which will seea second seriesin 1966. In 1967,OMreplacesits averagerangeby the100-120-150series, whichwill be the lasttruckwith atrueOMcabin,allthe following modelswill beunifiedcabFiatVItype "H" In 1970,OMlaunchedin ItalyOM190 andOM260, which are manufacturedFiat-Unic Izoard340in France.Theyknowthat ashort-lived, quicklyreplaced byFiat170/1904x2and Fiat3006x4.
TheTitanois the precursorof allItalian largestraight trucks the OMTitano22nd generationreplaced theSuperOrione.
In 1967thecompanyOM, which was part of the Fiat Groupsince 1933,lost itsstatus as an independentdivision andis groupedintoFiatIndustrial Vehicles . The brandOMremainsoncalenderstrucksbut it is theFiatconsultantswho are responsible forthe design ofnew products.That same year launchedmodelsOM120 andOM150. In 1970OMpresents a new seriesof heavy trucks190and 260, which replace Titano, equipped withadvanced newFiatVIcabins, In 1972OMseesits fullrangeunifiedwith that ofFiatVI. Its productsstillbadgedOMdiffer only inthe logo. In 1975,1 January, which includescreation ofIvecoFiatVIbuilders- OM-LanciaVI -UNIC-FIAT andMagirus-Deutz. The rangesofallthese manufacturerswillquicklyunified inall theircomponents andDeutzair cooled enginesquicklyabandoned
1969 OM Tigrotto 55 Truck
The OM cars era
Car models were Tipo 465 (with a 1327 cc four) in 1919, Tipo 467 (1410cc) and Tipo 469 (1496cc) in 1921. 1923 saw an all new model, Tipo 665 'Superba' with a 2-litre six-cylinder engine. This model was extremely successful in racing - won top five positions in the 2-litre class in 1925 and 1926 at Le Mans but the greatest achievement was the victory in the first Mille Miglia race in 1927 where Ferdinando Minoia and Giuseppe Morandi lead home an O.M. '123' at average speed of 48.27 miles per hour (77.7 km/h) for 21 hours 4 minutes 48seconds. Some cars were equipped with Roots superchargers.
In 1925 OM began to build trucks and buses, using licensed Swiss Saurer engines and other mechanical components. Ties with Saurer persisted all along OM life.
The OM 665 Superba
Fiat take-over and post-war years
OM was taken over by the Fiat Group in 1938 and in the following year passenger car production ceased, and OM became a commercial vehicle and train part manufacturer.
Main new product in the WWII post-war era was the Leoncino (1950) a light truck in the 2.0 to 2.5 tons range, which was an immediate success. It became the forefather of several series of heavier but structurally similar models, namely Tigrotto, Tigre, Lupetto, Cerbiatto and Daino, launched between 1957 and 1964. Bus chassis versions of several of these models were also available.
In the 60s and 70s the light and medium-weight OM truck ranges were sold in Switzerland as Saurer-OM or Berna-OM, in Austria as Steyr-OM, in France as Unic-OM, and in Germany as Büssing-OM.
The end of OM
In 1968 OM was definitively merged into the Fiat Group as a brand belonging to the Commercial Vehicles division, which also included Fiat and Unic.
In 1975 it was absorbed (as part of the Fiat Group) into IVECO and the OM brand disappeared from the truck and bus markets, although it still survives as an independent forklift manufacturer.