Tried to get max mpg out of the X5M50d, so kept gas steady on uphill and coasted downhill on a circle road around the city with 80/kmh speed limit, just a few lights. The most impressive is the range
. You also see my city average in the lower corner. Less Webasto has made it go down... Took another photo of the range once parked. It was actually pretty easy to get it below 6.0 at 70-80 km/h! I got it as low as 5.3 km/h /1049 km range.