The Buick LeSabre is a full-size car made by the division Buick of General Motors from 1959 until 2005. Prior to 1959, this position had been retained by the full-size Buick Special model (1936–58). The "LeSabre", which is French for "the sabre", was Buick's entry-level full-size car throughout all eight of its generations. The LeSabre was available as a 2-door convertible, sedan or hardtop, a 4-door sedan or hardtop and station wagon throughout its production.
History of model The LeSabre nameplate made its first appearance on the 1951 Le Sabre show car, which introduced the world to aircraft-inspired design elements such as the wrap-around windshield and tail fins. In 1959 LeSabre became the new moniker for what had previously been known as the Buick Special. The Buick LeSabre was offered in a full line of body styles except between 1965 and 1969 when its station wagon variant was dropped from Buick's full-size offerings. In 1977, the LeSabre was downsized along with other GM full-size models, and was available only in pillared coupe, sedan and wagon body styles.
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.
From 1959 to 1961, the LeSabre was powered by a 364 cubic-inch V8, which was smaller than the 401 cubic-inch V8 used in the more expensive Invicta and Electra models. The 364, which was previously used in all Buicks in 1957 and 1958, was rated at in standard form with an "economy" version offered as a "no cost" option in 1960-61 and an optional power-pack version with four-barrel carburetor and dual exhausts that was rated at . For 1962–63, the LeSabre came standard with a two-barrel carbureted version of the 401 V8 rated at , or a no-cost "economy" low-compression version rated at . Starting in 1964, all LeSabre models except the Estate Wagon shared their drivetrains with the midsize Buick models by switching to those models' smaller-displacement V8s at least as standard equipment for the next few years with cubic-inch displacements of 300 (1964–65), 340 (1966–67) and 350 (1968–76). A large-displacement would not reappear in a LeSabre until 1970 when a 455 cubic-inch V8 was introduced as an option and was offered through 1976. Beginning with the downsized 1977 models and continuing through three subsequent generations of front-drive LeSabres introduced in 1986, 1992 and 2000, Buick's 3.8-liter (231 cubic-inch) V6 would become the standard engine for most LeSabre models and V8 engines were dropped (except in station wagons) after the last of the rear-drive LeSabre sedans and coupes came off the line in 1985.
For most years from 1959 to 1971, a three-speed manual transmission was standard equipment on all LeSabres but rarely ordered. Far more popular was the Turbine Drive automatic transmission (previously known as Dynaflow) along with power steering and power brakes. For 1961 and 1962, the automatic transmission was standard on the LeSabre and all other full-sized Buicks but in 1963 was moved back to the option list on LeSabres. For 1964, the Dynaflow-based Turbine Drive was replaced by two new automatic transmissions, the two-speed Super Turbine 300 and the three-speed Super Turbine 400. A four-speed manual transmission was offered as a LeSabre option from 1963 to 1965 but only a small number of cars were so equipped. Automatic transmissions would once again reappear as standard equipment on LeSabres in mid-1971 and continue in such form until the model line's demise after 2005.
LeSabres were rear-drive six-passenger vehicles from 1959 to 1985 (station wagons through 1990) featuring separate body-on-frame construction along with a longitudinally 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 transversely 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. LeSabres come in two versions: Custom and Limited.
First generation (1959–1960)
LeSabre and all other 1959 Buicks not only got new names, but all-new styling as well, adopting the new GM B- and C-body used on all of the corporation's full-sized cars (the larger C-body used in the Electra as well as the Oldsmobile 98 and all Cadillacs was basically a stretched out B-body rather than a distinct body and chassis for 1959–60). Wheelbases increased by one inch on all models. The new styling included slanted headlights in front along with a chrome square grille somewhat similar to the 1958 Buick and "Delta-wing" fins back along with round taillights. The appearance was shared with two other Buick models, the mid-level Invicta and the top model Electra.
While Invicta and Electra/225 models were powered by Buick's new 401-cubic-inch V8, LeSabre continued with the 364-cubic-inch V8 previously used in all Buicks in 1957 and 1958. In standard form, the engine delivered 250 horsepower with a two-barrel carburetor and 10.25 to 1 compression ratio (with Dynaflow transmission; manual transmission cars had a lower 8.5 to 1 compression ratio but horsepower was still rated at 250). Optionally available was a four-barrel version of the 364 rated at 300 horsepower. A three-speed manual transmission was standard on LeSabre but most cars were built with the optional two-speed Dynaflow automatic transmission that was standard equipment on the Invicta and Electra/225. A three-speed "Triple Turbine" Dynaflow variant was also available. Power steering and power brakes were optional and all 1959 Buicks used the unique 12-inch finned aluminum brake drums for improved stopping power that were originally introduced on the 1957 Roadmaster.
The 1960 LeSabre received a major facelift, the new body design sharing only the roof and trunk lid with the 1959 model. The new Buick now sported a concave grille and horizontal headlights centered by Buick's then-new "Tri-Shield" logo, which is still in use today. Reintroduced to Electras and other Buicks for 1960 were the chrome "VentiPort" portholes first introduced in 1940 and last seen in 1957. LeSabre and Invicta models had three portholes while Electras and Electra 225s were "four-holers". Inside, a revised instrument panel featured "Mirromatic", where the speedometer, odometer and any warning light indicators are reflected from an adjustable tilt mirror inside the dashboard for comfortable viewing that would reduce unwanted glare and reflection. A new two-spoke steering wheel with horn bars was introduced, replacing the time-honored horn ring then still common to most automobiles. The 250- and 300-horsepower 364-cubic-inch V8s were continued from 1959, but a new no-cost option was a 235-horsepower lower-compression two-barrel version of the 364 with a lower compression ratio to permit use of regular-grade gasoline instead of the premium fuel required with all other Buick engines.
Second generation (1961–1964)
LeSabre and all other full-sized Buicks (joined by the compact Special this year) were completely restyled for 1961 featuring finless rear ends, more restrained use of chrome, and boxier sheetmetal. Wheelbases remained at but the new cars were slightly downsized in both length and width, and rode on a new X-frame chassis which included a conventional rear axle and driveshaft replacing the decades-old torque tube design. Inside were revised instrument panels retaining the "Mirrormatic" speedometer and new upholstery trims.
The Estate station wagons received a "Cordaveen" vinyl interior as standard, with the regular cloth/Cordaveen combination interior available as an option. Engines were unchanged from previous years including the standard 250-horsepower 364-cubic-inch V8, no-cost regular fuel 235-horsepower 364 or the four-barrel 300-horsepower option of same engine available at extra cost. The two-speed Turbine Drive Dynaflow automatic transmission was standard equipment on LeSabres and all other full-sized Buicks this year, although a manual transmission was also available. The Ventiports returned to the side of the front fender denoting the entry-level status in Buick's hierarchy of products offered.
The 1962 LeSabre was only moderately changed from the previous year with bodies taking on a few extra inches to give them a longer look along with new grilles and taillights. Two-door hardtop coupes received a new convertible-like roofline complete with simulated bows. Under the hood, the 364 cubic-inch V8 was replaced by the larger 401 cubic-inch V8 used in Invictas and Electra 225s. LeSabres came standard with a two-barrel high-compression (10.25 to 1) version rated at 280 horsepower with a low-compression regular fuel version of that same engine rated at 265 horsepower offered as a no-cost option. Optional at extra cost was the four-barrel 325-horsepower 401 which was standard on the Invicta, Electra 225 and the mid-year Invicta-based Wildcat coupe. Inside, interiors were mildly revised with the "Mirrormatic" speedometer replaced by a conventional horizontal sweep unit.
The 1963 LeSabre received a major facelift with even boxier body contours than 1961-62 models and revised rooflines on four-door hardtop sedans. Inside was a new instrument panel with round instruments shared with other big Buicks and the new personal-luxury Riviera coupe. New options this year included a seven-position tilt steering wheel/column, AM/FM radio and Electro-Cruise control. The same assortment of 401-cubic-inch V8s was carried over from 1962 but the three-speed manual transmission returned as standard equipment with the two-speed Turbine Drive automatic reverted to the option list. A new and rarely ordered option this year was a floor-mounted four-speed manual transmission.