All interesting arguments, and largely non emotional/sensible. Ownership of my Z4 is entirely emotional. No one buys this type of car for sensible use or reasons. ...and herein layeth the issue. Putting emotions to one side, the 520D ED makes lots of sense. However if I'm emotionless about the car, then I could buy something just as efficient, a lot cheaper, by another brand if all I wanted was sensible...
...I'm still chewing this over!
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