Question: The T-Type is a series of Buick automobiles that were popular during the 1980s, this marketing approach for Buick products, was a revival of a similar approach used in the 1960s (and later revived in the 1990s) with which vehicle designation, this name has been used on several high-performance cars built by Buick since 1965?

full_context: Document 1: Oldsmobile Cutlass Supreme: The Oldsmobile Cutlass Supreme is a mid-size car produced by Oldsmobile between 1966 and 1997. It was positioned as a premium offering at the top of the Cutlass range. It began as a trim package, developed its own roofline, and rose during the mid-1970s to become not only the most popular Oldsmobile but the highest selling model in its class.
Document 2: Toyota Carina II: The Toyota Carina line of large family cars was introduced in Japan in 1970. This was introduced in Europe in 1971, with A40 and A60 series subsequently appearing soon after their introductions in Japan. In 1984, the A60 series Carina was replaced in the European market by the "Carina II" - essentially a rebranding of the T150 series Toyota Corona launched the previous year in Japan, with some minor alterations to suit the European markets. This trend of Coronas rebadged as Carinas produced for the European market continued for two more generations, with the second Carina II in 1988 and the Carina E in 1992.
Document 3: Toyota AE86: The AE86 generation of the Toyota Corolla Levin and Toyota Sprinter Trueno is a small, lightweight coupe or hatchback introduced by Toyota in 1983 as part of the fifth generation Toyota Corolla lineup. For the purpose of brevity, the insider-chassis code of "AE86" depicts the 1600 cc RWD model from the range. In classic Toyota code, the "A" represents the engine that came in the car (4A series), "E" represents the Corolla, "8" represents the fifth generation (E80 series) and "6" represents the variation within this generation.
Document 4: Ford Type 9 transmission: Type 9 (also, Type N, T9, or T-9) is a gearbox from Ford that was used in Ford Capri 1.6, 2.0 1984 onwards, Capri 2.8 1983 onwards, Ford Sierra 1.6, 1.8, 2.0, Sierra XR4i,Sierra XR4x4 2.8 and the Scorpio 4x4 as well as the US market Merkur XR4Ti and Merkur Scorpio.
Document 5: T-Type: The T-Type is a series of Buick automobiles that were popular during the 1980s. This marketing approach for Buick products was a revival of a similar approach used in the 1960s (and later revived in the 1990s) with the Buick GS designation.
Document 6: Bentley Mulsanne (1980–92): The Bentley Mulsanne is a performance luxury car which was produced by Bentley Motors Limited from 1980 until 1992, though derivative models like the Continental T and Azure continued in production into the 2000s. The name "Mulsanne" is derived from Bentley's motorsport history, which included five victories at the 24 Hours of Le Mans between 1924 and 1930 — the 'Mulsanne Straight' being the stretch of the Le Mans racecourse where cars reach their highest speeds.
Document 7: Buick LaCrosse: The Buick LaCrosse is a large/mid-size luxury car manufactured and marketed by Buick since 2004. The LaCrosse is now in its third generation, slotted above the Buick Regal as the brand's flagship.
Document 8: GMT400: The GMT 400 and similar GMT 480 is the platform for the 1988-1998 full-size pickup truck. The GMT 410, GMT 420, GMT 425, and GMT 430 were used for full-size SUVs from 1991 to 2000. This was the first GMT designation for the C (RWD) and K (4WD/AWD) full-size trucks and SUVs.
Document 9: Buick Club of America: The Buick Club of America (BCA), founded in 1966, is a non-profit organization dedicated to the preservation and restoration of automobiles built by the Buick Motor Division of General Motors Corporation. The Buick Club promotes activities, resources, and friendships. The Buick Club has 8,000+ worldwide members and 70+ local Chapters in nine regions. These chapters promote local networking among Buick enthusiasts. The Club also has seven divisions based on vehicle types instead on geographic locations. One must be a member of the national organization to be a member of a division or chapter.
Document 10: GMT T1XX: The GMT T1XX is the assembly code for an vehicle platform architecture in development by General Motors for its line of full-size trucks and large SUVs that has been announced to start production in the fall of 2018 for the 2019 model year. The "XX" is a place holder for the last two digits of the specific assembly code for each model. As an example, the project code for the Suburban is T1YC. The platform is intended to replaced the GMT K2XX series that was introduced in April 2013 for the trucks, followed by the December 2013 production of large SUVs.
Document 11: Buick Straight-8 engine: The Buick Straight-8 engine (Fireball 8) was produced from 1931 to 1953 and sold in Buick automobiles, replacing the Buick Straight-6 engine across the board in all models in 1931. Like many American automobile makers, Buick adopted the straight-8 engine in 1931 as a more powerful alternative to the previous engines. However, unlike most other car makers at the time, Buick had been using a valve-in-head/OHV overhead valve design or I-head since its inception and continued this practice in their inline-8 designs. The engine was sold in different displacements depending on the model of car and the year and was constructed upon two distinct (possibly more) block castings. The smaller displacement versions internally resembled the inline Chevrolet straight six, with additional cylinders. The large block version (the 345 and 320, used in large-chassis models such as the "Roadmaster") was considerably heavier and this weight adversely affected vehicle performance and handling. In earlier years the engines used cast-in-place bearings that were then machined, which made engine rebuilding an expensive procedure, but after 1937 they began using drop-in bearings. The last year for Buick's straight-8 was 1953, but only in the Special, as the new V8 322ci Nailhead became standard in all other lines in the same basic chassis. Starting in 1954, the Special received the V-8 as well.
Document 12: Bentley Turbo R: The Bentley Turbo R is a high-performance automobile which was produced by Bentley Motors Limited from 1985 to 1999. The "R" stood for "roadholding", to set it apart from its predecessor. It initially inherited the turbocharged engine from the Mulsanne Turbo and also sported a retuned suspension and wider tires on alloy wheels, a first for a Bentley. From the 1987 model year (20,000 series chassis numbers), however, the Turbo R's V8 engine was retuned with fuel injection for added torque. "Motor Trend" called the Turbo R "the first Bentley in decades deserving of the famous name" in their review of the car on its introduction to the United States in 1989.
Document 13: Pontiac Grand Prix: The Grand Prix was a line of automobiles produced by the Pontiac Division of General Motors from 1962 through 2002. First introduced as part of Pontiac's full-size car model offering for the 1962 model year, the marque varied repeatedly in size, luxury, and performance during its lifespan. Among the changes were positioning in the personal luxury car market segment and mid-size car offering from the 2nd generation to the 5th generation for the sedan and from the 2nd generation to the 6th generation from the coupe; it returned to a full-size car from the 6th generation to the 7th generation for the sedan, positioned below the larger Bonneville in Pontiac's model lineup.
Document 14: Buick Limited: The Buick Limited was an automobile built by Buick between 1936 and 1942 and during model year 1958. Since 1959 Buick has used the "Limited" name to denote those models which featured a high level of trim and standard options in its various model ranges.
Document 15: Buick Gran Sport: The Gran Sport name has been used on several high-performance cars built by Buick since 1965. In the GM brands hierarchy, Buick was surpassed in luxury and comfort appointments only by Cadillac, which did not produce performance models. As a result, the Buick GS series were the most opulently equipped GM sport models of their era.
ground_truth: Buick GS