iv got 54 plate 3.0 d sport with all the toys on just done a 600mile trip in it a few sundays ago and got 34mpg on that trip, mpg goes down round town as expect tows my rs on the back and you hardly no its there, will tow 2500kgs
oh and if you need a tow bar use this place

http://www.pfjones.co.uk

saved my self a few £££££ on a Detachable Towbar and Dedicated Electrics
there not to bad on service so long as you dont use main dealer,

go for the 6 speed auto box's fitted to the later models are much better

go for the best spec you can get but make sure every thing works and it has full service histroy mine has just done 80k best car ive ever had and cant see geting rid

go for 1 with 19 on as i drove 1 with 21inch and didnt like the ride as much

i was lucky as i got mine off a mates dad for trade price as he was trading it in at bmw for a new x5 so let me have it for what they was giveing him

good look anything els i can help with let me no