1985 Buick LeSabre Limited Collectors Edition

The Buick LeSabre is a full-size upscale car made by the Buick division of General Motors from 1959-2005. For many years, the LeSabre was considered the entry level full-size Buick, carrying the lowest base price in the Buick lineup. Prior to 1959, this position had been retained by the full-size Buick Special model; in 1959 the LeSabre replaced the Special, a nameplate that was reintroduced in 1961 for Buick's line of compact cars. The name originated with the 1951 Buick Le Sabre show car designed by Harley Earl.

LeSabres were rear-drive six-passenger vehicles from 1959 to 1985 (station wagons through 1990) featuring separate body-on-frame construction along with a longitude-mounted front engine. The first downsized generation of LeSabres introduced in 1977 retained the rear-drive and body-on-frame construction, while the later-generation models introduced in 1986 switched to front-wheel-drive, unit-body construction and front transverse-mounted engine. Convertibles were offered each year through 1975 while two- and four-door hardtops were dropped after 1976 and only pillared body styles were offered from 1977 to 2005. Station wagons were offered through 1964 and then dropped for several years until being reintroduced in 1970 and continued until 1990 after which year they were moved to the revived Roadmaster series.

In addition to being Buick's entry level vehicle, the LeSabre was consistently Buick's best selling full-size car. Of the four nameplates introduced in 1959 (LeSabre, Invicta, Electra, Electra 225), the LeSabre nameplate lasted the longest.

Fifth generation (1977–1985)
1985:
This would be the final year for the rear-drive LeSabre before another downsizing and conversion to front-wheel-drive for 1986 (sedans and coupes only; the rear-drive LeSabre Estate Wagon would soldier on unchanged a few more years). It was also the last LeSabre sedan and coupe to feature body-on-frame construction, V8 power and Buick's traditional all-coil suspension (the 1992–96 Roadmaster sedans would also be similarly built). The top-line LeSabre Limited became the LeSabre Limited Collectors Edition to mark the end of an era for the rear-drive sedan and coupe.

Engine offerings included the standard 231 V6 (sedans and coupes) or optional Olds 307 V8 (which came as standard in the wagons) and Oldsmobile 350 diesel V8 (available in all models). 1985 307s received roller lifters for reduced friction. Production of this generation continued until 1990 in Estate Wagon form, as well as some reportedly found as hearse conversions.

LeSabre carried the title of America's Best-Selling Full-size Car until its demise at the end of the 2005 model year. The car was replaced in 2006 with the larger, more upscale Buick Lucerne.

The last LeSabre rolled off the Lake Orion, Michigan assembly line on June 18, 2004 (retooling the plant to build the Pontiac G6) and the last Hamtramck, Michigan LeSabre rolled off the assembly line on July 22, 2005.