Editing Buick (section)

====1930s====
Buick debuted two major achievements for the 1931 model year, the [[Overhead valve|OHV]] [[Buick Straight-8 engine]] and a [[synchromesh transmission]] in all models but the Series 50. The Eight was offered in three displacements, the 220 cubic inch (bore 2 7/8 in. stroke 4.25 in.), was available in the Series 50 with 77 brake HP. The Series 60 engine was a 272 cu. in. unit (bore 3 1/16 in., stroke 5 in.) giving 90 brake HP. Cadillac had previously introduced the [[Cadillac Type 51]] with a flathead V8 engine in 1915 which made usage of an eight-cylinder engine a luxury feature.

The Series 80 and Series 90 used a 344 cu. in. version (bore 3 5/16 in., stroke 5 in.) for 104 brake HP. Automatic vacuum-operated spark advance was another feature replacing the steering column-mounted spark lever although an emergency lever was now dash mounted. Buick scored another first in 1939 when it became the first company to introduce [[turn signal]]s, which did not appear on other car brands until almost a decade later.<ref>{{cite news|url= https://www.nytimes.com/2013/07/14/magazine/who-made-that-turn-signal.html?_r=0 |title=Who Made That Turn Signal? |date=July 12, 2013 |newspaper=The New York Times}}</ref> All 1939 models also had a steering column-mounted shift lever.

In the mid-1930s McLaughlin-Buicks were purchased by British monarch [[Edward VIII]].<ref>{{cite news|url= https://www.telegraph.co.uk/news/uknews/1338217/Car-that-took-King-into-exile-goes-on-sale.html |location=London |work=The Daily Telegraph |first=Caroline |last=Davies |title=Car that took King into exile goes on sale |date=2001-08-23}}</ref> He had a preference for the Canadian built McLaughlin-Buick.<ref name="vancetimescolonist">{{cite news |last1=Vance |first1=Bill |title=Ontario car company became GM Canada |url= https://www.timescolonist.com/driving/bill-vance-ontario-car-company-became-gm-canada-4672987 |newspaper=Victoria Times Colonist |date=May 24, 2019 |access-date=April 28, 2022}}</ref> Buicks were used for royal transport within Canada, including for King [[George VI]] and Queen [[Elizabeth Bowes-Lyon|Elizabeth]] during the [[1939 royal tour of Canada]].<ref name="vancetimescolonist"/>

In the 1920s and 1930s Cadillac and Buick vehicles were popular with long-distance passenger service operators e.g. the [[Nairn Transport Company#Vehicles|Nairn Transport Company]] in the Middle East (Baghdad-Damascus).

<gallery caption="Buick in the early years">
File:1904Buick.jpg|1904 [[Buick Model B]]
File:1905 Buick Model C.jpg|alt=Buick Model C, Jackson, Michigan|1905 [[Buick Model B|Buick Model C]]
File:Woman on Buick.jpg|1910 [[Buick Model 10]] Runabout
File:1914 BUICK B-35 PHAETEN, AM-91-91 pic1.JPG|1914 [[Buick Six|Buick Six Model B-35 phaeton]]
File:Buick Roadster 1917.jpg|1917 [[Buick Four|Buick D-35]] roadster
File:Buick E-Six 45 (1918) 1Y7A6067.jpg|1918 [[Buick Six|Buick E-45]]
File:Buick Roadster 1922.jpg|1922 [[Buick Six|Buick Model 22-54]] Sport roadster
File:Buick Standard Model 25 Touring 1925 2.jpg|1925 [[Buick Master Six|Buick Master Six Series 25]] touring
File:16 21 2362 museum.jpg|1925 [[Buick Master Six]]
File:SLNSW 22578 192930 Buick coupe.jpg|1929 [[Buick Series 40|Buick Series 46]] Business Coupe
File:Buick Coupe Series 26 (1930) (20634081715).jpg|1930 [[Buick Series 40|Buick Series 46]] Business Coupe
File:Buick 4-Dorrars Sedan 1932.jpg|1932 [[Buick Series 60|Buick Series 60 Model 67]] sedan
File:Buick 46C Convertible Coupe 1935.jpg|1935 [[Buick Special#Series 40 (1930–1935)|Buick Series 40]] Model 46C convertible coupe
File:1938 Buick Roadmaster 4d sdn - fvr.jpg|1938 [[Buick Series 80]] touring sedan
File:1939 Buick 4d sdn - brown - 13.jpg|1939 [[Buick Special#Series 40 (1930–1935)|Buick Series 40 Model 41]] touring sedan
File:1941 Buick Limited (34646246692).jpg|1941 [[Buick Limited|Buick Series 90 Touring Sedan Model 90]]
</gallery>