The Tradesman is the most basic trim and comes with 18-inch steel wheels (17 inches on models with dual rear wheels), automatic headlights, black grille and bumpers, tow hooks, a locking tailgate, a limited-slip rear differential, air conditioning, a 40/20/40-split front bench, a tilt-only steering wheel, vinyl upholstery, a driver information display, an auto-dimming rearview mirror with an incorporated rearview camera display, and a six-speaker stereo with a USB port. Power windows and locks, including the locking tailgate, are standard on crew-cab models, as are power-adjustable and heated mirrors. Regular cabs have manual controls and non-heated mirrors by default. The SLT adds chrome exterior trim, chrome wheels, an integrated trailer brake controller, heated mirrors, a power-sliding rear window (manual on regular cabs), remote locking and unlocking, an overhead console, cloth upholstery, carpeted floors, full power accessories, Bluetooth, satellite radio, and a 5-inch touchscreen interface that displays the rearview camera image. The Big Horn (Lone Star for shoppers in Texas) adds alloy wheels, chrome grille slats, foglights, a 115-volt power outlet, a power-adjustable driver's seat, premium cloth upholstery, a leather-wrapped steering wheel with audio controls, and a charge-only USB port. The Laramie builds off the Big Horn/Lone Star and adds a standard 6.4-liter V8, alloy wheels for dual rear-wheel models, more chrome trim (including the bumpers), projector headlights, LED taillights, power-folding and auto-dimming mirrors, front and rear parking sensors, dual-zone automatic climate control, leather upholstery, driver-seat memory settings, and a six-way power front passenger seat with power lumbar adjustment. This trim also brings heated and ventilated front seats, a heated steering wheel, an upgraded driver information display, a 10-speaker surround-sound audio system, a 4G LTE Wi-Fi hotspot, HD radio, and an 8.4-inch touchscreen with Apple CarPlay and Andr