Buses bodybuilders AUTOKORI OY —- OY DELTA PLAN AB Turku Finland


Bus bodies were built in Turku already in the late 1920s. Two body building factories – “Nieminen body factory” (later known as Turun Autokoritehdas) at Tehtaankatu and a vehicle equipment factory “G.W.Wulff Ajokalutehdas” at Itäinenkatu – produced bodies, and competition between these two factories was quite tough.

1936 Autokori Oy perustettiin vuonna

1936 Autokori Oy perustettiin vuonna

After the Great Depression, the demand for buses increased remarkably and three bus company owners Verner Arvela, Emil Heikkilä and Volmar Mäkinen decided to join forces and start their own body manufacturing factory in 1935.

Turun Autokoritehdas

Turun Autokoritehdas

This is regarded as the start of the company. The official date of establishing the new factory is February the 1st 1936. The company was named Autokori Oy. The facilities were rented from the Turku City Administration and were situated in the fields of Pispala, which is today known as the Ikituuri suburban.


1930 Autokori Oy n 1930-luvun koripiirustukset

“Chevrolet 157”. Matkustajaluku 20. Turun autorakenne Oy, 20.1.1934

1935 Diamond 311.C. Matkustajaluku 27. Turun autokorirakenne Oy, 26.10.1935.

“Diamond 311.C”. Matkustajaluku 27. Turun autokorirakenne Oy, 26.10.1935.

During the war the factory was involved in producing orders for the Finnish Defense Forces. After the war, the country experienced a serious lack of buses, but the sudden demand couldn’t immediately be satisfied, as the factory also experienced a lack of chassis and components for the production.

1934 REO

1934 Autokori Oy n REO 1D

1934 International

1938 Autokori Oy, 10.2.1938. International D.30 173

1938 Autokori Oy, 10.2.1938. International D.30 173

1938 Merc Benz OP 3750

1938 Autokori oy n Mercedes Benz OP 3750

1938 Sisu SB 10

1938 Autokori Oy Sisu SB 10

1938 Studebaker S.K.20.B-001. Matkustajaluku 31. Autokori Oy,

1938 Studebaker S.K.20.B-001. Matkustajaluku 31. Autokori Oy.

1938 Volvo LV 84 Bus

1938 Volvo LV 84 Bus

1938 Volvo LV.84.B. Matkustajaluku 24. Autokori Oy, 26.9.1938

1938 Volvo LV.84.B. Matkustajaluku 24. Autokori Oy, 26.9.1938

1937 SISU SH-7 i104655

1938 SISU SH-7 i104655

1938 Opel 183 (Blitz) Matkustajaluku 26. Autokori Oy, 10.2.1938.

“Opel 183 (Blitz)” Matkustajaluku 26. Autokori Oy, 10.2.1938.

In 1950, Autokori rented a site in Itäharju. A new factory was established there and in August 1951 the whole body production was moved from Pispala to Itäharju. At the bus exhibition in Helsinki 1955 the company’s bus was awarded a gold medal for its steel reinforced wooden body.

1957 Autokori Oy Airisto

1957 Autokori Oy Airisto

The first steel based body was manufactured by Autokori in 1957, and from April 1960 onwards steel was the base material for all the bodies. The most popular body models at the time were the Airisto and the Aura.



New ideas started to grow in the company in 1964 with the introduction of new ownership in form of an engineer, Aimo Laukka. It was in these times the production started to speed up and the annual volumes started to increase. Before Laukka, the annual production was 40-45 bodies, but already in 1965 Autokori manufactured a total amount of 83 bodies. The company started to sell products outside of Finland, and the first buses to be exported were delivered to Sweden in 1966. In 1969, the annual production capacity was 129 bodies, of which an amount of 19 were delivered to foreign customers.

TPB-861 web Vanaja VAL-550 BD Autokori Vanaja VLK-5000 Korittamo and Vanaja VKT6-5200+1150 Ajokki vanhinlinjaautoasema Volvo B12 Yhteissisu assembly line 10caphotolatil2_Bay_OmarFacelli - kopie 11 - kopie 17 Bedford - kopie 18 - kopie 23 - kopie 29 - kopie 53-150x150 - kopie 1934 International - kopie 1937 SISU SH-7 i104655 - kopie 1937. REO liikennöi reitillä REO safety bus - kopie 1938 1 - kopie 1938 Volvo LV 84 Bus - kopie 1939 - kopie 1950 aarre236 - kopie 1953 - kopie 1954 Sisu Diesel - kopie 1957 Autokori Oy Airisto - kopie 1957BIU-555, Volvo B10R Taival GT ties missä, ties koska; Härmän Liikenne 11, ent. Koski & Koski 4 (TVN-444) - kopie 1958 - kopie 1958-72 Sisu B-72 Autokori Oy Turku. Vuosien - kopie 1960 2 - kopie 1960 vecimage (1) - kopie 1960. Kuva Kalle Kultalavanha linjaauto - kopie 1964 Volvo Alavieskaan - kopie 1966 Volvo Wiima - kopie 1967 Volvo B70501 1959 г.в. Hägglund & Söner на шасси Volvo B58-60 1967 - kopie 1968 - kopie 1968 T-7038 Mercedes-Benz, kombinertbuss, 1968-modell. - kopie 1968 Volvo B57  Wiima M-68 - kopie 1969 Ford R226 kombinertbuss 1969 - kopie 1971 vecimage (1) - kopie 1971 Volvo Post bus, designed by Paavo Huovinen, combined engraved and lithography, and issued by Finland on November 18, 1971 - kopie 5753c4d8eeb415cbb7f96b422767a484 - kopie 7835 - kopie 8042961 - kopie AJOKKI - kopie AJOKKI a - kopie Åland Busshistoria Skargardsvagen bokparm - kopie ALLA SKÄRGÅRDSVÄGENS BUSSAR - KAIKKI SAARISTOTIEN BUSSIT FN-190_web1 - kopie ALLA SKÄRGÅRDSVÄGENS BUSSAR - KAIKKI SAARISTOTIEN BUSSIT TUC-22_web - kopie autokori - kopie Autokori Oy - kopie AUTOKORI OY» на шасси Volvo LV83-84 - kopie Bedford OB-72 - kopie Bedford Sales Caravan in Jyväskylä, Finland 1950′s Brockway Bus Auto Volvo Post Office Van Finland MNH 1971 Bus Finland 1920s Bussen AJOKKI VANHA Finland can-stock-photo_csp8755988 Diamond Kysymys 05 EB-121 TA web1 Fargo 09 Fargo 1951 Finland bus stamp 1947 Finland bus TAMPERE BUS Y19 RISTINARKKU - KESKUSTORI Ajokki Finland Kotka Bus FN-189 Norrskata RN hetku img325v img812e Kutter Volvo Kysymys 03 KUVA 2 KUVA 3 Kuva 05 KUVA kuva1vi7 kuva3 Kysymys 01 Kysymys 30 Lahden Autokori Oy Kuva 18 Leyland Comet, Autokori oy Matka Autot Oy, Landskapsarkivet Åbo. Bussen väntar sist i kön vid Rävsundet på Kustö sidan ... T-550 web old-bus Postautobus 12 Postikortti+pkn+edessa+pieni pv005xkw.medium Scania Vabis Autokori Oy FN-190 web1l Scania Vabis Bilde Scania Vabis bus Scania Vabis TFE-81 web SISU L-60S1 i151525 Sisu laipio Sakari L44 Sisu stfold1 stock-photo-finland-circa-a-stamp-printed-in-finland-shows-retro-passenger-bus-circa-67212460 T-550 Manenpaa samling Taivassalon Auto TBN-1 HTP thumb_volvovinstra TON-207 web Vanaja VAL-550 BD Autokori Vanaja VLK-5000 Korittamo and Vanaja VKT6-5200+1150 Ajokki vanhinlinjaautoasema vecimage (1) vecimage (2)

This are not all buses from Autokori Oy, but from the same period and from scandinavian karosseri fabrike


In the late 1960s, a new site was bought in Nuolemo, Lieto. A decision to build a new factory was made and the body production moved to the new site in 1973. Simultaneously, the company name was changed from Autokori Oy to Oy Delta Plan Ab and the new Delta body models were introduced. The export market continued to expand and the first bused to Norway and Iceland were manufactured in the 1970s. In 1976 the company made a record in the volume of produced bodies as the total amount of completed units rose to 246. 77 of these buses were delivered to the export market. The company’s buses were also awarded more prizes at many international exhibitions, including an exhibition in France.

1973 Delta Plan Rosenburg Ballklub 146710-VE42737aomla-1 1973 DeltaPlan Volvo 145439-AX25173ass 1974 Veljekset Salmela Scania F112 CLS Delta 200 1975 DeltaPlan Volvo HOB146294-VE26420a 1976 Delta 200 - Volvo B58 1976 Delta Express 1976 DeltaPlan 200 Scania boekje 1976 Deltaplan 300 Volvo 1976 Deltaplan 400 Scania 1976 DeltaPlan 500 Volvo 1976 DeltaPlan Scania Haga Express 146035-RE98618ab 1976 Deltaplan Volvo Drangedal Bilruter AS 146499-JU48839bs 1976 DeltaPlan Volvo Russia 146499-JU48839exp 1976 Scania BR145A med Delta Plan dp400 påbygg 1976 1978 Delta City - Volvo B58 1978 DeltaPlan Scania Haga express 146466-RF29501b 1978 DeltaPlan Scania Litouwen 1978 Scania BF111S-59 kombinertbuss 1978 1980 DeltaPlan Jumbostar DD 1982 DPScania 147116-XD57285bsomls 1983 Delta Plan Scania Kettlegurgle 6 1984 Scania K113CLB Delta Star 501 1985 Delta Plan Star 50 DIGITAL CAMERA 1985 DeltaPlan Scania 200 Estland 1985 DeltaPlan Superstar Litouwen 1985 DeltaPlan Volvo 147116-XD57285bfs 1985 Scania K112 TL Delta Superstar 9000 Kombi 1985 Scania K112TL vin 1808209 Delta SuperStar 9000 Kombi 1985 Scania K112TL vin 1808210 Delta SuperStar 9000 Kombi a 1986 DeltaPlan Star 1986 Volvo B10M Delta Express 1987 Jyväskylän Liikenne Volvo B10M Delta Superstar 1987 Mercedes-Benz 1120-49 Delta (Erikoiskori) Star 20, entinen lentoparkkibussi 1987 Volvo B10M Delta Star 50 1988 Delta Star 301-Jyväskylän Liikenne Scania K113 1991 Delta Star 501 Rovaniemi Volvo 1991 Matkamies Scania K113 Delta Star 501 1991 Scania K113 Delta Superstar 1992 Volvo B10M Delta Star 301 1994 DeltaPlan Vilnius Litouwen 2000 Delta Plan 149170-KTW701-GB2000 2000 Mercedes-Benz Delta Star 301 2001 Scania K124EB Classic IV 360 6x2 Carrus Delta Oy 2001 Volvo B10M  Carrus Star 302 2001 Volvo B10M Carrus Star 302 2001 Volvo B10M Carrus Star 502 2004 Delta Star 602 - Scania K113 2004 DeltaPlan Volvo 9700H Estland 2007 Scania Delta Plan Star Bus Smolyan Bulgaria 2007 Volvo B12B -B YV3R8L3267A119059 Delta 9700 HD-II 6434x6434-KH48079a 2007 Volvo B12M -B YV3R9L2257A117821 Delta 9700 HD-II x6406-JU95063a Delta Express - Scania BF110 DELTA PLAN 1 Mercedes Benz Delta Plan Mercedes Benz Delta Plan Scania Haga Bussferie 147019-RF59448ab Delta Plan Veljekset Salmela Oy 42 Delta Plan Volvo Vagnild 147304-VE72020af Delta Star 30 Delta DeltaPlan Volvo HOB 147035-VE60128a DeltaPlan Volvo x6458-VF87659b DeltaPlanMercedesBensNettbuss 148149-JU66712aooml DeltaStar 501 Volvo DP Scania 146986-JC76940assoml Nya Deltaplan Jumbo Star OY Delta Plan AB Scania B2 Delta Plan 147366-VE72955bc Scania K112CLB Delta Star 50 Volvo B10M. Bygget av Carrus og har et Delta plan 501 påbygg Volvo DeltaPlan 30M 147266-DF35280a Volvo DeltaPlan 145628-YN25321bsomb

After five years of operations in Lieto, the factory became inadequate and new facilities were acquired in Yliskulma, Lieto. The former dairy facility had already been used for metal industry for some years. The chief Supervisor of the factory, Mr Helmer Forsman, was a very creative manager who invented various special machinery and tools for body production. The roofmaking tool that Forsman invented is still in use.

The year 1979 was very significant for Delta Plan. The company acquired the assets of Erikoiskori Oy, a special vehicle factory in Iisalmi. The purpose was to add production of fire engines to the product range. However, only one fire engine unit was built and Iisalmi became the production facility for short buses. During 1980 an amount of 186 bus bodies were produced.

The prototype of the Delta Star – model was completed and this model participated in an exhibition in Nice during the autumn in 1981.

In January 1982 Oy Delta Plan Ab was sold to Ajokki Oy and the 18 year long career of engineer Aimo Laukka in the head of Delta Plan ended. The company continued its growth and a new model, Delta Superstar, was introduced in 1983.  The  same year, the model was exhibited at the Nice Salon with great success. Annual production was 173 units. 59 buses were delivered to export market.

The 50th anniversary of the company was celebrated in August 1985. In the same year the most popular body model of the company, Delta Star, was introduced. Shortly after the Delta star 50 model was completed, some new models were launched including the doubledecked Jumbostar and the smaller coach Delta Star 30.


In 1986, Ilmari Mustonen, the owner of Wiima Oy bought Ajokki and Delta Plan. The production at this time was 171 bodies of which 96 were exported. In 1988, the products included models like the Star 301, Star 501, Superstar and Jumbostar. In 1989 the company changed its name to Carrus Oy. Consequently, the Lieto factory got the name Carrus Oy Delta.

In 1991 the body frame material was changed to stainless steel, and Carrus Stainless was used as the base material in all the bodies manufactured by Carrus factories. In the mid 1990s, the Carrus Oy Delta body models were completely updated taking into account new safety requirements for modern bus bodies. The new models were named the Star 602, Star 502 and the Star 302.

The Turku factory is known for innovative solutions proved by the many body models introduced. Also, an own passenger seat was developed during the 1990s.


In 1997, a new page was turned in the company’s history as the company was sold by Ilmari Mustonen to Volvo Bussar AB, and Carrus became a subsidiary for Volvo.

In these times the factory experienced significant growth in international relations and today there are still several bus models which have been developed at the Lieto factory that are manufactured today by Volvo in countries like Mexico, Poland and India.

The name Carrus Oy Delta was changed to Volvo Bus Finland Oy Turku in June 2004. In the year 2004 185 buses were produced at the Lieto factory.


The last drastic change happened in 2008, when the company operations were transferred back to Finnish ownership. The traditional company name was restored, which lives on today. This is the story of Carrus Delta Oy.