I’ve only done 150 miles in my xc40 b4 but getting 36+mpg on average at the moment. Very much depends on your driving style I guess. If you keep the revs under 3500 for most of your driving this is easily achieved. If start revving it out it will drop quickly. The 197bhp feels pretty nippy to me and would not call it under powered, its plenty for this type of vehicle.