Range Rover Sports are available in two versions, the HSE and the Supercharged. The HSE comes with a 300-horsepower, 4.4-liter V8. The Supercharged has a supercharged V8 4.2 liter engine and makes 390 horsepower. Both engines drive through a new six-speed CommandShift automatic (that's also fitted in the top-of-the-line Range Rover). Full-time four-wheel drive with a two-speed, shift-on-the-fly, electronic transfer case is standard, as is an electronically controlled, locking center differential.The 2006, The Land Rover Range Rover has two new engines: 4.4-liter DOHC 32-valve V8; 4.2-liter DOHC 32-valve supercharged V8. It also has a new 6-speed automatic transmission with CommandShift.