Intended more as a commercial work truck, the modestly appointed XL comes standard with 17-inch steel wheels, air-conditioning, a tilt-only steering wheel, vinyl upholstery and an AM/FM radio. SuperCrew XL models gain remote keyless entry, power side mirrors, an overhead console and power front windows. The STX includes all of the above, along with alloy wheels, additional body-colored exterior trim, rear power windows for the SuperCab, cruise control, cloth upholstery, a 40/20/40 front seat, a CD player and an auxiliary audio jack. More creature comforts come with the XLT in the form of automatic headlights, foglights, chrome exterior trim, a keyless entry keypad, the Sync voice-activation system and Bluetooth. The FX trims add 18-inch wheels, a trailer tow package, an auto-dimming rearview mirror, a leather-wrapped and telescoping steering wheel with additional controls, front bucket seats, a six-way power-adjustable driver seat, a household power outlet, a trip computer with color display and satellite radio. Four-wheel-drive FX models also gain hill descent control, skid plates and an electronic locking rear differential. Standard safety features for all 2013 Ford F-150s include four-wheel antilock disc brakes, stability control, trailer sway control, front-seat side and full-length side curtain airbags. Fords Sync system includes an emergency crash-notification feature that automatically dials 911 when paired with a compatible cell phone.