level overall ride height. A badge was installed on the dashboard to the left of the steering column on all vehicles equipped. It was not available on vehicles equipped with Gran Touring Suspension. Production Figures Engines 1988–1989 2.8 L (170 in³) Chevrolet LB6 MFI V6, and 1989–1993 3.1 L (191 in³) Chevrolet LH0 MFI V6, and 1994–1996 3.1 L (191 in³) Chevrolet L82 SFI V6, and 1990–1995 3.8 L (231 in³) Buick L27 V6, and 1996 3.8 L (231 in³) Buick L36 V6, and Fourth generation (1997) For the 1997 model year, the Century and Regal once again rode upon the same platform; the revised W platform that was shared with the Oldsmobile Intrigue, the Pontiac Grand Prix, the Chevrolet Lumina and Chevrolet Monte Carlo. The Regal coupe was discontinued. Differences between the Regal and Century were mostly cosmetic. As the upmarket version, the Regal offered larger engines and fancier trim, and once again boasted a newer version of the 3.8 L V6. While the Century was mainly a reliable, economy-minded car based upon the W-body, the Regal was fitted with many amenities, including heated leather seats (optional on the Century), a Monsoon 8-speaker surround sound system, dual climate control, and expansive interior space. Few changes occurred during this version's seven-year run. It offered 5-passenger seating on all trim levels like the Pontiac Grand Prix and Oldsmobile Intrigue (formerly Cutlass Supreme), unlike their predecessors that had optional 6-passenger seating and the Buick Century (formerly built on the A platform) which had standard 6-passenger seating. This period held the fastest Buick since the days of the 1987 GNX: the Buick Regal GS. This car was now supercharged instead of turbocharged, and produced and of torque. When introduced in January 1997, Buick advertised the Regal GS as "The official car of the supercharged family". Buick also released two other model types, the LSE and the GSE. The LSE stayed with the engine with upgrades and the GSE stayed with the supercharged engine with upgrades. Also, in 2000 Buick came out with a concept GSX that had an intercooled 3.8 L, but was supercharged rather than turbocharged. It had The North American Regal was replaced in 2005 by the Buick LaCrosse, also built on the W platform. The final 2004 Buick Regal rolled off the assembly line on June 1, 2004. Engines 1997–2004 3.8 L L36 Series II V6 1997–2004 3.8 L L67