I have noticed a similar noise.

I do not think that it is tire noise. I experimented by modulating the throttle slowly, the noise changed with the engine speed before the vehicle speed changed.

I sounds like a bit like a Toyota truck. I am bringing my in to have the read entertainment unit replaced and I will ask them to look at it.

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07 X5 E70 4.8i
04 Z4 E85 3.0