SpokenHands
thanks for that. Your experience is more or less what I hoped for. At the end of the day, it's all about how you drive, and the greater the mass, the greater the significance of driving style.
I tend to cruise, but like to have some power in reserve if needed
The focus on running costs tends to be prior to the purchase, not after the event...
It's looking more like a 530d GT every day
Hugh