I have a d3 and love it. Only problems i forsee owning it are the lack of spare wheel and dodging potholes with the 30 series tyres other than that it is an awesome piece of machinery. Mine is single turbo so only 204hp and a bit laggy compared to the twin turbo.
I keep forgetting to put fuel in it though as the range is like 500 miles on the trip computer if driving like a granny when full.
Mine says 37 mpg mosts days!!