Tax savings and fuel consumption aside... But can you truly ENJOY driving an electric car? I hated driving a tesla. I hated Prius. Can't come to terms with a 4 cylinder engine in a big car. This downsizing is becoming ridiculous...
I would expect "the ultimate driving machine" to be more concerned about how it makes the driver FEEL about driving (I.e. Experiencing the whole connection with the car), rather than about making an x5 the next wonder of the world in terms of fuel consumption. Plus, 4-pots just sound wrong. Which takes away the joy of being in a car and engaging with it...
This makes me sad, really. And I'll be sadder still, if the rumors of a 3 cylinder engine in the next gen 5er are true