Thanks guys, she really is my pride and joy and nearly everyone who has seen the car asks me if I'll sell. I've been offered 30K above book for her but I'm not selling. I've grown so fond of this car, you won't believe and she's irreplaceable to me.
Little bit of history - Bought her as a 2 year old with 75K on the clock from BMW approved. Have now done 170K and not a single issue with the car from day 1. Had the car modified by RGM after the motorplan expired and the power gains were excellent. Fuel consumption is averaging 7.8 in town driving which gives me 900km on a tank - the car is really economical for a modified 3 litre.
Build quality is exceptional and everything still works perfectly on the car - trust me, if I compare it to my Lumina, it's in a completely different class (power excluded of course).
Had a moment a few weeks back when I considered trading it on a X5 35d but as nice a vehicle as the X5 was, after test driving it, I couldn't help thinking that it was not as well put together or as comfortable as my 5.
So for now I'm holding onto her until I find something better - might take a while:=):