Sadly for us up north, with the gas prices soaring so much in the last few years (from ~0.90 to 1.40$ a litre), the new X3 was miles ahead ALL the competition in terms of gas efficiency; nothing even came close for the power/size/efficiency ratios, so happy to report that for my driving style, the MPG is pretty much bang on.
So yeah, keeping tabs on decent MPG efficiency has been a thing for us for a while