Only minor differences between 06 and 07s. PTI / Bluetooth was an option on 06s, standard issue on all 07s. The front passenger window became auto up/down, like the driver's. A clock function was added to the message center to copy the one displayed on the radio LCD. Supercharged owners got Sirius as standard equipment and could choose between LUX or perforated leather seats on MY07s.
http://www.rangerovers.net/modelspecs/Sport/2006.html
http://www.rangerovers.net/modelspecs/Sport/2007.html
http://www.rangerovers.net/modelspecs/Sport/2006.html
http://www.rangerovers.net/modelspecs/Sport/2007.html