This 2023 GMC Sierra 1500 American Luxury Coach AT4 Z92 Intruder commands attention with its striking black exterior and premium craftsmanship, designed for those who demand capability without compromise.- Suspension & Performance: 6-inch ALC lift kit and computerized front-end alignment.- Wheels & Tires: 20-inch black/machined Fuel Contra wheels wrapped in three5/12.50R20 Mickey Thompson Baja ATZ tires.- Exterior Styling: Z92 hood scoop, custom fender flares, side door moldings, blacked-out badging/emblems, tailgate/roof spoilers, and 3-step wheel-to-wheel black side steps.- Interior: Custom double-diamond leather seating, Z92 door sills/gauge packages- EcoTec3 6.2L V8 engine with 420 hp and 460 lb-ft of torque- 10-speed automatic transmission with 4WD- Technology Package with rear camera mirror and 15"" multicolor head-up display- AT4 Premium Package with off-road high clearance steps- Premium Bose 7-speaker sound system with SiriusXM- Heated and ventilated front seats with 10-way power adjustment- Adaptive cruise control with lane keep assist- HD surround vision and bed view camera- Spray-on pickup bed liner with AT4 logo- Remote vehicle starter system with keyless open and start- Wireless phone projection and chargingThe AT4 Premium Package elevates this Sierra beyond standard capability, combining luxury appointments with genuine off-road engineering. The integration of the Technology Package delivers navigation, a rear camera mirror, and an advanced head-up display that keeps critical information within your line of sight. The Trailering Package, paired with the integrated trailer brake controller and hitch guidance with hitch view, makes managing a trailer straightforward and secure.Inside, the Sierra's cabin reflects thoughtful design and quality materials. Perforated leather seating with heating and ventilation in the front row ensures comfort across seasons, while the 10-way power adjustable driver's seat with lumbar support accommodates all body types. Dual-zone automatic climate control and a heated steering wheel add refinement during cold weather. The infotainment system supports both Apple CarPlay and Android Auto, keeping your devices seamlessly integrated whether you're working or navigating.Safety features throughout this truck demonstrate GMC's commitment to protection. Automatic emergency braking, forward collision alert with pedestrian braking, lane keep assist with departure warning, and rear cross traffic braking provide multiple layers of awareness. The ultrasonic front and rear park assist, combined with the HD surround vision system, makes maneuvering straightforward in tight spaces. OnStar and GMC Connected Services deliver emergency assistance and remote vehicle monitoring.The exterior reflects the AT4 Z92 Intruder's purposeful character. The 20-inch machined aluminum wheels with carbon grey metallic accents pair with black chrome header and grille insert bars for visual distinction. The spray-on bed liner bearing the AT4 logo protects your cargo area, while LED cargo lighting illuminates the truck bed. Off-road high clearance steps make entry more convenient, and deep-tinted glass provides privacy and solar heat rejection.With 15 city mpg and 19 highway mpg, this EcoTec3 V8 delivers the power you expect from a premium full-size truck. The 220-amp alternator, auxiliary external transmission oil cooler, and block heater ensure reliability in demanding conditions. Dynamic fuel management optimizes efficienc