Thanks for he replies...we're heading down to Beaufort, SC for the New Year. I've done that drive at the speed limit in my wife's 335d. 42MPG! Maybe high 20s in the x5d...I'll post when I get the chance.
Around town the car is starting to feel "smaller" so that's a good thing as the first week was spent agonizing around corners and just generally just "feeling" may way the parking garage.
Thrilled with the purchase.