Ha, big deal.... I went upstate NY (Catskills) from NJ, 320 miles round trip, 4 adults in the car, not exceeding 75mph, and I managed to get 20mpg avg ! yes, it was feathering the gas pedal and predicting stops/traffic lights, wasnt fun at all, but I did it

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His : 2013 X5 3.5d Deep Sea Blue/Black/Aluminum with ALL packages, 20" 214"s, running boards, Adaptive Drive, Spare Tire, BMW Apps
On Order : 2016 X3 3.5 MSport Silver/Mocha with DHP, CW, Prem, Tech, DA, Lighting

Hers : 2015 328xi MSport Silver/Red

Prior:
2008 X5 4.8
2011 X5 3.5d
2010 335 xDrive
2013 335 xDrive