As a side note I can say the displays on E39 and E53 are different. For example the screen polarisation angle is different. On E39 you can't use polarised sunglasses because the screen would appear black. On E53 the screen shows normally with polarised lenses but does not if you turn them 90 degrees.

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E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
E70 X5 40d -12 M-Sport Space grey