I dunno. Had it in Eco mode and cruise set on 74 for almost the entire way (straight shot down the interstate). Maybe I had a tailwind, but it hovered at 26.5 most of the way.
Originally Posted by grilodan
27 mpg in a 650i? What's your average speed? I used to get around 27mpg in my F10 535i averaging 80mph. I don't know how you're pulling 2mpg with the V8 and that heavy body. Low speeds is my only guess.
2013 650i M-Sport, Black Sapphire Metallic, Ivory Nappa