Congratulations and welcome!

X5 is fine in the winter with the right tires.

It is also a good tow vehicle. Have a friend that was towing an M3 all over Texas every weekend. It was a supercharged 4.6. They were towing at 70mph most of the time.

Not to worry about hydrolock. There is a CCV system for extreme cold. It probably already has it.

The issues you listed are not difficult to correct--good luck!

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas