Introduced for 2003, the Sorento was a five-passenger sport-utility vehicle, priced to compete with compact SUVs. Similar in size and weight to the Jeep Grand Cherokee, however, the Sorento offered the size, power, and type of construction more typical of larger, midsize models. With its separate body-on-frame design and heavy-duty four-wheel-drive system, this model bucked the trend toward car-based unibody construction. The sole engine was a 192-horsepower, 3.5-liter V6, also used in Kia's Sedona minivan. A four-speed automatic was the only transmission. Two-wheel drive and a choice of two four-wheel-drive systems were available. Both 4WD systems had a limited-slip rear axle and low-range gearing, but the extra-cost Torque-On-Demand setup could be left engaged on dry pavement. LX and upscale EX trim levels were offered. On both versions, head-protecting curtain side airbags for the front and rear seats were standard, but antilock braking was optional. All Sorentos had 16-inch wheels, a rear liftgate with separate-opening rear window, and a full-size spare tire mounted beneath the rear underbody. Air conditioning, power windows/locks/mirrors, cruise control, a CD player, and 60/40 split folding rear seatback were standard. Kia was owned by Hyundai, and the South Korean companies shared warranty coverage of 5 years/50,000 miles bumper-to-bumper, 10/100,000 powertrain, and a 5-year/unlimited-mileage roadside assistance. Competitive vehicles included the Ford Explorer, Honda Pilot, Nissan Xterra, and Toyota Highlander.