these special edition vehicles, and as such, these special editions were mostly appearance packages, albeit with unique-handling suspension options. Second generation (2000) Other than the Tahoe Limited Edition, the vehicle was redesigned and launched in January 2000 for the 2000 model year on the new GMT800 platform, still shared with the full-sized pickups and SUVs. Two new engines replaced the old Chevy 5.7 L (350 cu in) small-block V8, and while both were smaller, both produced more horsepower but less torque. In Mexico, the GMT800 Chevy Tahoe is called the Chevrolet Sonora. A 2-door GMT800 Tahoe prototype was made but never entered production. Suburban and Tahoe models sold in Mexico offered the 5.7 L Small-Block Chevrolet V8 (RPO Code R31) as an option in early models, whereas it was replaced by the new 5.3L Vortec V8 engine in all other markets. Both vehicles received significant updates with only the grille, headlights and body-side moldings distinguishing one from the other. Both vehicles now featured softer lines as part of a more aerodynamic design. The interior was also updated with new seats, dashboard, and door panels. 2000 All-new Tahoe and Yukon are launched. Side-impact airbags are standard for driver and front passenger, OnStar communications system optional, automatic headlamp control standard, Power-operated sunroof optional for first time, new uplevel 9-speaker audio system with rear mounted subwoofer, Driver Message Center, new PassLock II theft-deterrent system, Autoride Suspension system optional on Tahoe LT and Yukon SLT, all-new independent SLA front suspension with torsion bars and all-new five-link rear suspension with coil springs. The GMT400 Tahoe was carried over into the 2000 model year as two "Limited Edition" models: the 4X2 Limited, and the 4X4 Z/71. Both models were discontinued after the 2000 model year. The GMC Yukon Denali was redesigned for the 2001 model year, and the Cadillac Escalade was redesigned in 2002 (there was no Escalade for the 2001 model year). 2001 New colors Forest Green Metallic and Redfire Metallic are introduced while Dark Copper Metallic and Dark Carmine Red Metallic are canceled. Two-tone paint is discontinued, optional Z71 package available on LS 4x4 includes: tube side steps, unique lower molding and wheel flares with extensions, color-keyed grille, bumpers, door handles and mirrors, unique front foglamps, unique luggage carrier with rear roller (roof rack), specifically tuned shock absorbers, 17-inch wheels, P265/70R17 all-terrain tires and OnStar. 40/20/40 bench seat gets revised cupholder design, Tan/Neutral replaces