V4 engine (English Wikipedia)

"100 Years of Motoring". The Motor: 52. 25 May 1985. Retrieved 20 March 2018.
Baldwin, Nick (1987). The World guide to automobile manufacturers. Facts on File Publications. p. 530. ISBN 9780816018444. Retrieved 20 March 2018.
Cole, Lance (2011). SAAB 99 & 900: The Complete Story. Crowood. ISBN 9781847973528. Retrieved 20 March 2018.
Henshaw, Peter (2004). Sports Cars: 500 Series. MBI Publishing. p. 178. ISBN 9780760319956. Retrieved 20 March 2018.
Lee, Peter (2015). Ford Transit: Fifty Years. Crowood. ISBN 9781847978745. Retrieved 20 March 2018.
Hicks, Clifford B. (October 1957). "Big News for Boaters: the V4 outboard engine". Popular Mechanics. 108 (4): 140–142. Retrieved 26 February 2021.
Roe, Jim (February 1972). "New Outboards". Popular Science. 200 (2): 146. Retrieved 26 February 2021.
Skorupa, Joe (April 1988). "Outdoors: Yamaka stirs up the waterways". Popular Mechanics. 165 (4): 38, 40. Retrieved 26 February 2021.
"Wisconsin Motors advertisement". Product Engineering. 32: 415. 1961. Retrieved 14 January 2016.
"Wisconsin Motors Corp". Automotive Industries. 138: 64. 1968. Retrieved 14 January 2016.

brighton-early.com (Global: low place; English: low place)

"MORS". brighton-early.com. Archived from the original on 9 December 2004.

carthrottle.com (Global: low place; English: low place)

"Obsolete Engines 101: The Mythical "V4"". Car Throttle. 10 September 2009. Retrieved 19 July 2012.

cybermotorcycle.com (Global: low place; English: low place)

"Austrian Motorcycles". Classic Motorcycles by Sheldon's Emu (in Spanish). Retrieved 8 December 2019.

fourwheeler.com (Global: low place; English: low place)

Morr, Tom (1 January 2013). "1961 AMC M422A1 Mighty Mite - Tin Soldier". Four Wheeler Network. Retrieved 20 March 2018.

grandprixhistory.org (Global: low place; English: low place)

"Grand Prix Cars - Mors 60 HP". Grand Prix History. Retrieved 7 December 2019.

hemmings.com (Global: 4,697^th place; English: 2,720^th place)

McCourt, Mark J. (December 2017). "1971 Saab 96 V4: A Ford-sourced engine gave this Swede a new lease on life". Hemmings Motor News. Retrieved 20 March 2018.

hondanews.com (Global: 9,295^th place; English: 5,777^th place)

"Historical V4's". Honda Media Newsroom. American Honda Motor. Archived from the original on 23 February 2014. Retrieved 17 February 2014.

jalopnik.com (Global: 3,339^th place; English: 2,019^th place)

Torchinsky, Jason. "Why Are V4 Engines So Rare?". Jalopnik. Retrieved 20 March 2018.

klassiker.nu (Global: low place; English: low place)

"Walters V4". klassiker.nu (in Swedish). 30 October 2018. Retrieved 7 December 2019.

military-today.com (Global: 5,739^th place; English: low place)

"Type 75 - Multiple launch rocket system". Archived from the original on 8 December 2019. Retrieved 8 December 2019.

militaryfactory.com (Global: 3,557^th place; English: 3,722^nd place)

"Type 75 MLRS 130mm Multiple-Launch Rocket System - Japan". militaryfactory.com. Retrieved 8 December 2019.

motor-car.net (Global: low place; English: low place)

"AMC M422 Mighty Mite Jeep (1959-62)". motor-car.net. Retrieved 7 December 2019.

motos-of-war.ru (Global: low place; English: low place)

"Puch P800". motos-of-war.ru. Retrieved 8 December 2019.

pipeburn.com (Global: low place; English: low place)

Hodgson, Martin (17 June 2016). "1930 Matchless Silver Hawk". Pipeburn. Retrieved 19 March 2021.

porsche.com (Global: 4,165^th place; English: 3,453^rd place)

"Porsche starts in Le Mans with four works cars". Porsche AG. 13 January 2014. Retrieved 16 February 2014.

revistacar.es (Global: low place; English: low place)

"Top 10, motores V4 como el de Porsche en Le Mans". revistacar.es (in European Spanish). 17 July 2017. Retrieved 20 March 2018.

turnermanufacturing.org.uk (Global: low place; English: low place)

"Yeoman of England Tractors". Turner Manufacturing. Archived from the original on 11 April 2021. Retrieved 19 March 2021.

web.archive.org (Global: 1^st place; English: 1^st place)

"MORS". brighton-early.com. Archived from the original on 9 December 2004.
"Mighty Mite M422". 4WD Online. Archived from the original on 16 July 2011. Retrieved 20 March 2018.
"Ranking The Best And Weirdest Engines Ever Made By Jeep". autowise.com. Archived from the original on 8 December 2019. Retrieved 7 December 2019.
"Historical V4's". Honda Media Newsroom. American Honda Motor. Archived from the original on 23 February 2014. Retrieved 17 February 2014.
"Engine: W4-1770". wiengines.com. Archived from the original on 17 February 2019.
"Yeoman of England Tractors". Turner Manufacturing. Archived from the original on 11 April 2021. Retrieved 19 March 2021.
"Type 75 - Multiple launch rocket system". Archived from the original on 8 December 2019. Retrieved 8 December 2019.

wiengines.com (Global: low place; English: low place)

"Engine: W4-1770". wiengines.com. Archived from the original on 17 February 2019.

wisconsinmotorscanada.ca (Global: low place; English: low place)

Swanson, David (2003). "Early History Of The Wisconsin Motor Company". Wisconsin Motors Canada. Retrieved 14 January 2016.

V4 engine (English Wikipedia)

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brighton-early.com (Global: low place; English: low place)

carthrottle.com (Global: low place; English: low place)

cybermotorcycle.com (Global: low place; English: low place)

fourwheeler.com (Global: low place; English: low place)

grandprixhistory.org (Global: low place; English: low place)

hemmings.com (Global: 4,697th place; English: 2,720th place)

hondanews.com (Global: 9,295th place; English: 5,777th place)

jalopnik.com (Global: 3,339th place; English: 2,019th place)

klassiker.nu (Global: low place; English: low place)

military-today.com (Global: 5,739th place; English: low place)

militaryfactory.com (Global: 3,557th place; English: 3,722nd place)

motor-car.net (Global: low place; English: low place)

motos-of-war.ru (Global: low place; English: low place)

pipeburn.com (Global: low place; English: low place)

porsche.com (Global: 4,165th place; English: 3,453rd place)

revistacar.es (Global: low place; English: low place)

turnermanufacturing.org.uk (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

wiengines.com (Global: low place; English: low place)

wisconsinmotorscanada.ca (Global: low place; English: low place)

books.google.com (Global: 3^rd place; English: 3^rd place)

hemmings.com (Global: 4,697^th place; English: 2,720^th place)

hondanews.com (Global: 9,295^th place; English: 5,777^th place)

jalopnik.com (Global: 3,339^th place; English: 2,019^th place)

military-today.com (Global: 5,739^th place; English: low place)

militaryfactory.com (Global: 3,557^th place; English: 3,722^nd place)

porsche.com (Global: 4,165^th place; English: 3,453^rd place)

web.archive.org (Global: 1^st place; English: 1^st place)