1936 BUICK SERIES 40 SPECIAL 4 DOOR SEDAN 1936 Buick Series 40 Special 4 Door Sedan
A quick explanation of the Buick Series nomenclature boils down to simply knowing what the number represents. 40 is Special, 50 is Super, 60 is Century, 70 is Roadmaster, 80 is Roadmaster, (or Limited in 1940), 90 is Limited. It gets a bit more detailed when a second digit was added to denote body style such as the 56C or 79R. Eventually, Buick and other manufacturers switched the names rather than numbers and confusion subsided. Thx to the aaca.org