The Invicta series was introduced as a full line of body styles for model year 1959.
 Sales never approached that of either the entry-level LeSabre or top level Electra models, but were consistent with the traditional sales penetration of Buick's sporty mid-priced models (the 1954 to 1958 Century and 1963 to 1970 Wildcat).
The Invicta continued the tradition of installing Ventiports on the front fenders from the Century.

In a survey of 1959 Buick owners in the March, 1959 issue of Popular Mechanics, 47.1% of owners like the ride comfort, though many (25.2%) said the drive shaft tunnel was too big.

Starting in 1960, an Invicta Custom trim package was offered, featuring bucket seats and a 'consolette' in the hardtop coupe, convertible and wagon and a leather bench seat with a center armrest on some 4 door hardtops.
Sales were nominal.

According to Robin Moore's 1969 book The French Connection, "the 1960 Buick Invicta had a peculiarity in body construction conducive to the installations of...extraordinary, virtually detection-proof traps concealed within the fenders and undercarriage" that made it a popular model for international heroin smugglers.
The Invicta series was introduced as a full line of body styles for model year 1959.  Sales never approached that of either the entry-level LeSabre or top level Electra models, but were consistent with the traditional sales penetration of Buick's sporty mid-priced models (the 1954 to 1958 Century and 1963 to 1970 Wildcat). The Invicta continued the tradition of installing Ventiports on the front fenders from the Century.
In a survey of 1959 Buick owners in the March, 1959 issue of Popular Mechanics, 47.1% of owners like the ride comfort, though many (25.2%) said the drive shaft tunnel was too big.
Starting in 1960, an Invicta Custom trim package was offered, featuring bucket seats and a 'consolette' in the hardtop coupe, convertible and wagon and a leather bench seat with a center armrest on some 4 door hardtops. Sales were nominal.
According to Robin Moore's 1969 book The French Connection, "the 1960 Buick Invicta had a peculiarity in body construction conducive to the installations of...extraordinary, virtually detection-proof traps concealed within the fenders and undercarriage" that made it a popular model for international heroin smugglers.
Buick Invicta