Yes it is a 3.0diesel. I get around 32mpg solo and 25/26 mpg towing average. We went to Spain earlier this year and clocked the mpg as a matter of interest and it is an absolute dream as a tow car.
NB: Took delevery in March 2003. Bought it new with some of my redundancy money nearly 5 years ago. Then I decided to take early retirement. Yes it was expensive (many sleepless nights before deciding) and then I had to wait 9 months for delivery but I absolutely love the car.