2018 GMC Sierra 2500HD SLE Package $39,990

The base Sierra comes standard with a 6.0-liter V8 engine (360 hp and 380 lb-ft), a six-speed automatic transmission, 17-inch steel wheels, an automatic locking rear differential, xenon headlights, LED daytime running lights, air conditioning, a choice of cloth or vinyl upholstery, a 40/20/40-split front bench with a fold-down center armrest, a 60/40-split folding rear seat, rubber floor covering, a rearview camera, power door locks, cruise control, a tilt-only steering wheel, a 7-inch IntelliLink touchscreen infotainment system and a six-speaker sound system with two USB ports, an auxiliary audio input jack, Apple CarPlay/Android Auto compatibility, Bluetooth phone and audio, Pandora radio, and voice controls. Optional tech equipment on the base Sierra 2500HD includes OnStar, 4G LTE Wi-Fi and satellite radio. From the base Sierra on up, you have your choice of engine, too. A turbocharged 6.6-liter diesel V8 (445 hp and 910 lb-ft) is also available, and it is paired to a different six-speed automatic. Buyers can also add a bi-fuel option to the 6.0-liter engine, allowing it to run on gasoline or compressed natural gas. If the base truck isn't your flavor, then step up to the SLE. It gets most of the base trim's optional tech features plus an upgraded 8-inch central touchscreen, 17-inch alloy wheels, tinted rear windows, a remote locking EZ Lift & Lower tailgate, LED cargo box illumination, remote keyless entry, carpeting, a leather-wrapped steering wheel, HD radio and a CD player.