emblems, chrome nameplate badging, and new polished 22-inch wheels. The interior is unique to these models, boasting with heated/ventilated Black-and-Mahogany leather front seats, Jet Black trim surround, a head-up display, and an eight-inch cluster. The exterior features standard cross rails, chrome power steps, and chrome exhaust tips. This feature was discontinued in the 2020 model year. RST Edition Chevrolet added a new package to the 2018 model year Suburban with the introduction of the street-themed RST (Rally Sport Truck) Special Edition Suburban. Originally at the time of the announcement, it was supposed to be available as an option for the LT and Premier trims as a Performance Package that included a , 6.2-liter V-8 engine, a Magnetic Ride Control with performance calibration, and an all-new Hydra-Matic 10L80 10-speed automatic transmission. The press release also detailed additional features; The chrome elements are absent as body-color grilles surround the door and handles, along with an added gloss-black grille and mirror caps, black roof rails, window trim, badging and Chevy bowties, an exclusive 22-inch wheels wrapped in Bridgestone P285/45R 22 tires, a Borla performance exhaust system, massive front red Brembo six-piston, fixed aluminum calipers with brake pads clamping on larger-than-stock Duralife rotors, coupled with an 84 percent increase in brake pad area and a 42 percent increase in rotor area to increase system thermal capacity. However, after the press release Chevrolet confirmed that the RST Suburban would only be available as an appearance package, as the 6.2-liter engine would not be used for the 2018 model year. But on May 4, 2018, Chevrolet expanded the RST package to the Suburban as an option for the 2019 model year that will now include the 10-speed automatic transmission and 6.2L engine, reversing a decision made by GM that it would be exclusive to GMC and Cadillac's Suburban siblings Yukon XL and Escalade ESV. The packaged trim went on sale in July 2018. The RST package option became a level trim with the twelfth generation Suburban for the 2021 model year. 2500HD and 3500HD Suburban A 2500HD Suburban became available in 2015 as a 2016 model. However, this version, identified as a Class 3 vehicle (around of GVWR), is only available for sale to rental companies and commercial fleet entities as a 4WD vehicle and will use the same design as the eleventh generation version, but uses a different engine altogether. The 2500HD Suburban is only