On Friday evening I drove the Scoob to Canmore, and got some of the worst highway mileage I've seen. Roof box adds 1.5L/200km or so, but add in an 80+km/h head wind, and blamo, fuel economy is BAD! We were also making time, so I was trying to keep it at 125kmh, but thanks to the crazy winds, that was a struggle. Yup, 120-125 was foot-to-the-floor!!!
18L/100km That is bad, but my buddies X5 4.4 was over 25!