As the base model, the lightly equipped Tacoma Regular Cab is ideal as a work truck; it actually has more standard amenities than other bare-bones pickups. Standard features include 15-inch steel wheels, a limited-slip differential, air-conditioning, a composite bedliner, a bed utility rail system, a tilt-and-telescoping steering wheel, a cloth front bench seat and a four-speaker stereo with a CD player and auxiliary audio jack. When equipped with four-wheel drive and an automatic transmission, the Regular Cab gets front bucket seats. The Access Cab gains power locks and windows, upgraded cloth upholstery, front bucket seats, a rear bench (includes under-seat storage) and two more speakers. The Tacoma Double Cab adds 16-inch steel wheels, a front skid plate and driver lumbar adjustment. The Convenience package adds power mirrors, keyless entry, cruise control, a sliding rear window and steering-wheel audio controls. Standard safety equipment on all 2011 Tacomas includes stability and traction control, antilock brakes (disc front, drum rear) with brake assist, front-seat side airbags, full-length side curtain airbags and front active headrests. Hill-start assist control (HAC) and downhill assist control (DAC) are available on 4WD models equipped with the automatic transmission.