Editing Buick (section)

==Motorsport==
For many years, Buick was a substitute for Chevrolet in [[automobile racing]]. Driver [[Phil Shafer]] drove a Buick to win the 1933 [[Elgin National Road Races|Elgin Trophy]], considered to be the first officially organized [[Stock car racing|stock car race]] in the United States.<ref>{{cite web |url=http://www.kalracing.com/Autoracing/Elgin_National_Road_Races_History.htm |title=Elgin National Road Races History |publisher=kalracing.com |access-date=25 January 2024}}</ref><ref>{{cite web |url=https://silodrome.com/1933-ford-roadster-elgin-national-road-race-car/ |title=The 1933 Ford V-8 Roadster Elgin Race Car |date=6 July 2020 |publisher=silodrome.com |access-date=25 January 2024}}</ref>

No earlier than the 1960s, Buick was a competitor in the [[Indianapolis 500]], and (like almost every other American manufacturer) also participated in the [[Sprint Cup Series|Grand National]] stock car racing series using its [[Buick Regal|Regal]] and later the [[Buick Gran Sport|Gran Sport]].

The golden age of Buick in motorsport, however, was early through late 1980s. General Motors entered the Regal, particularly the [[Buick GNX|Grand National]] model, in the [[NASCAR Cup Series]] alongside the [[Oldsmobile Cutlass]]. Buick was also a major powerplant in the [[IndyCar Series]] and [[IMSA GT Series]] (particularly in the IMSA GTP class) for several years. The 1990s, however, proved to be the end of Buick's reign in motorsports, as GM replaced it for many years with [[Oldsmobile]] before phasing out that marque in 2004. Oldsmobile would be replaced by [[Pontiac (automobile)|Pontiac]] until its demise in 2009, being replaced by Chevrolet.

Buicks were also entered in the [[Trans Am Series]] in the 1980s and 1990s using aftermarket V8 engines.