in addition to the engine change, the 2006 range rover is equipped with an updated "infotainment" system. this includes a touch screen with on and off-road navigation, radio, cd, satellite radio (us), telephone, rear view camera, a wireless video camera system and other additional features all accessed via the same user interface. the audio system is harman kardon logic 7 surround sound. also available is a dvd rear seat entertainment which is fully integrated.