The 2007 Kia Sorento comes with a new 3.8-liter V6 engine that produces 262 hp and 260 pound-feet of torque. It's mated to a five-speed automatic transmission that allows you to choose between automatic or manual-shift modes. With its upgraded power plant, the Sorento can now tow up to 5,000 pounds in two- or four-wheel drive. Fuel economy is rated at 17/23 city/highway. Buyers have a choice of two-wheel drive (rear-wheel drive, that is) or four-wheel drive. The standard 4WD system is an off-road-oriented part-time system, but those who opt for a luxury package-equipped EX model get the automatic Torque-On-Demand 4WD system that also includes low-range gearing for better off-road performance.