Z71 remained in production on the GMT400 platform as special edition vehicles. These vehicles were produced in the Arlington, Texas, assembly plant for the 2000 model year only. The Chevrolet Tahoe Limited was based on the Chevrolet Tahoe SS concept vehicle introduced in 1996 that never made it to production. It is reported that GM disliked the idea of an SS-badged vehicle at a time when insurance companies were already demanding higher premiums for SUVs. The Tahoe SS prototype vehicles made in 1996 were painted either an unspecified metallic green or metallic blue, but the Tahoe Limited was produced only in Onyx Black. The Tahoe Limited had a distinctive exterior appearance that included a factory equipped ground effects package, a monochromatic theme with bumpers and grille painted in the same high gloss black as the body, removal of the roof rack, and fog lamps integrated into the front bumper. Other notable features of the Tahoe Limited included the Z60 high-performance chassis package (commonly known as the police package) which places the body of the vehicle lower than the 4WD Tahoe, two-tone gray and charcoal leather interior seating surfaces, a gauge cluster, Bilstein shock absorbers, a 3.42 or optional 3.73 rear gear ratio, a limited slip rear differential, an engine oil cooling system, and distinctive 16 inch Ronal R36 five-spoke aluminum wheels wearing 255/70R16 tires. The Chevrolet Tahoe Z71 also exhibited a monochromatic appearance similar to the Tahoe Limited, but instead of Onyx Black the Tahoe Z71 was offered in either Light Pewter Metallic, Victory Red, Emerald Green Metallic, or Indigo Blue Metallic. Features of the Tahoe Z71 were similar to those of the Tahoe Limited with a few key differences to distinguish the 2WD Tahoe Limited from the 4WD Tahoe Z71. Features that differ from those previously mentioned on the Tahoe Limited included the Z71 off-road chassis package ( Bilstein shock absorbers, a standard 3.73 rear gear ratio G80 locking differential), color-keyed wheel flares, trim, grille, and bumpers, underbody skid plates, inset driving lights built into the center of the front bumper, oversized two-row radiator, two-tone leather seating surfaces in either a gray or neutral theme, distinctive taillamp lens protectors, black tubular side assist step bars, black brush guard, and distinctive 16-inch Alcoa five-spoke six-lug polished aluminum wheels. The L31 5.7L Vortec V8 powerplant and 4L60E four-speed automatic transmission shared with other GMT400 Chevrolet Tahoe vehicles were not modified in