It appears to mostly be a generic tractor manufactuer as its the only current vehicle manufacturer to make tractors, and only tractors. Its likely meant as a catch-all tractor manufacturer, most prominently; John Deere and the Fordson brand of the Ford Motor Company.
|Image||Vehicle||Style||Based On (HD Universe)||Notes|
The Fieldmaster in Grand Theft Auto V.
The Fieldmaster (snow) in Grand Theft Auto V.
|Fieldmaster||Modern Tractor||John Deere 7810||Snow variant only seen in a mission.|
The Tractor in Grand Theft Auto V.
|Tractor||Old Tractor||1917-1927 Fordson Model F||Front end features "Stanley Engines" marked on it.|
- Stanley is also the name of a well-known tool manufacturer 'Stanley Black & Decker, Inc.', which points towards a possible reference.
- Stanley shares its name with the Stanley Steamer, a popular and well-known steam-powered car made from 1897 to 1924.
- The company name could also be reference to International Harvester, which also manufactures agricultural equipment. International Harvester was formed in 1902 by J.P. Morgan, whose grandson co-founded Morgan Stanley with businessman Harold Stanley in 1935.
- Jacksheepe - Another agricultural manufacturer in Grand Theft Auto V, based on John Deere with a more similar name and logo.