Grovsnus, I'm really just typing to see the letters, not to argue with you. I don't think we're saying different things, just pointing out that the X1 is reasonably efficient for a relatively heavy and suitably powered car/suv.
Speed will unquestionably lower your efficiency, but I hold that it's a much smaller impact in a typical German car than it is in something like an F250 pickup or a sedan geared to only do 110 mph.
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