The 2006 Land Rover Range Rover Sport is a 4-door, 5-passenger luxury sport-utility, available in two trims, the HSE and the Supercharged. The Supercharged is equipped with a standard 4.2-liter, V8, 390-horsepower, supercharged engine that achieves 13-mpg in the city and 18-mpg on the highway. A 6-speed automatic transmission with overdrive is standard on both trims.