premium audio system with seven speakers, keyless access and push-button start, a remote starter system, heated and ventilated luxury leather-trimmed seating surfaces, a heated leather-wrapped steering wheel, driver-assist technologies, a multi-angle camera system, and heated rear seats. The 2019 GMC Sierra went on sale in September 2018 as an early 2019 model year vehicle at GMC dealerships nationwide. Regular Cab Initially unavailable at launch, the all-new 2019 Chevrolet Silverado 1500 and GMC Sierra 1500 regular cab configuration went on sale in early 2019. Only available with an pickup box, with a choice of two-wheel-drive or four-wheel-drive and the 4.3-liter EcoTec3 V6 or 5.3-liter V8 gasoline engines, the regular cab is exclusively available in W/T trim (1WT) for Silverado 1500, or Sierra (1SA) trim for Sierra 1500. The regular cab option is unavailable in other trim levels in the United States and Canada, as these trucks will appeal mainly towards fleet and commercial buyers. Regular cab models with a bed and in higher trim levels are produced but are only available for sale in Mexico and the Middle East. Starting in 2022, regular cab models with a bed were made available in the United States and Canada, albeit only in W/T trim. Standard features include a black front grille, black front and rear bumpers, 17" steel wheels, manual windows and door locks, manual black side mirrors, a seven-inch touchscreen infotainment system with rearview backup camera and Apple CarPlay and Android Auto smartphone integration, vinyl seating surfaces, a split front bench seat, vinyl flooring, and air conditioning. Options include the Chrome Appearance Group (17" aluminum-alloy wheels and chrome front and rear bumpers), OnStar 4G LTE in-vehicle Wi-Fi capabilities, cloth seating surfaces, carpeted flooring with floor mats, and the Power Equipment Group (power windows and door locks, keyless entry, power black side mirrors, and cruise control). 2020 changes The 2020 Silverado sees deletion of the Oakwood Metallic exterior paint color. Major additions are new vertical trailering mirrors, which include power adjustability, as well as power-folding and power-extension capabilities. Adaptive Cruise control is optional on the LTZ and High Country trim levels, and SiriusXM 360L capability is available on LT and higher trims. Silverado 1500s lose the keyless access buttons on the rear doors. The Sierra sees a new Carbon Black Metallic paint color in addition to the above-mentioned Silverado updates. 2020 is the final model year for Double Cab 1500 models in LTZ,