Richard Petty's historic 1981 Buick Regal 5.7 litre V8 NASCAR racer with driver Thaddeus Moffitt at the 2019 Goodwood Festival of Speed, Sussex, UK Stock Photo - Alamy
1983 Buick Regal "notchback" NASCAR racer at the 2011 Goodwood Festival of Speed, Sussex, UK Stock Photo - Alamy
Lamley Daily: Bobby Allison's 1983 Buick Regal – LamleyGroup
The Buick Grand National and GNX's History Told by its Creators