Thanks Adam,
Yes, "the horse has left the barn", but the advice is well received anyway.
I've now had the car for a week and have been driving "sensibly" mostly in Efficiency mode with occasional excursions in to manual paddle shift mode. Still working out the adaptive cruise control quirks!
500 miles done so far and yesterday I went into Sport mode for a moment and was pleasantly surprised by the sprightly feel to the drive, even though I didn't work the engine hard at all :)
Many thanks
Graham.