The LaSabre was initially introduced in 1959 as a trim level of the Buick Invicta and was positioned as a mid-level luxury car. However, it quickly gained popularity and became a separate model the following year, replacing the Invicta. Throughout its production, the LaSabre underwent several redesigns and updates to keep up with changing automotive trends and customer demands.
In 1975, the Buick LaSabre received a major redesign as part of the fifth generation of the model. During the 1975 model year, the LaSabre offered a range of engines, including V6 and V8 options. The most common engines were the 350 cubic inch V8 and the larger 455 cubic inch V8, both of which provided decent power for the era. Throughout its history, the LaSabre was known for its comfortable and spacious interiors, smooth ride, and overall reliability. It appealed to a wide range of buyers looking for a comfortable and affordable luxury car.