Service records are nice, BUT..A REALLY GOOD inspection would suffice.
Probably oil changes are the most important, look under the oil fill, stick your finger in there and see if there is any foamy sludge....how's the brake fluid look, how about the coolant ?
Some car just "look" beat, while others look "good"...(my friends laugh at me but I say that a car "talks to me".....
Then again, a dealer car has probably been to the FOUNTAIN OF YOUTH, less likely for a private party

Bought my X in Montreal Canada but original purchase was phoenix Arizona USA and transit to Toronto Canada. First time i went to the dealer ..and last ...(but this is another story) for oil changed, they took my key insert into the computer and got 4 pages of Maintenance many minors thing including the transit USA to Canada...very surprise that your X5 got zero maintenance at BMW other than oill changed during the warranty period ....

right now the car is great as it sits. things im doing is simply to have a peace of mind.
im going to get the oil changed or probably get the tranny software updated on friday.

The only "issue" i see so far is the rough downshift from 2-1.

Nice ride and find. LeMans Blue with that many miles is a rare gem. Good luck with it and welcome to the Big Boy Club. What color is the interior?
Please place all the info in your signature such as I have done. This gives us a fast way to see what car you have so we can give you information faster.

Thanks. Ill do that once I figure out how to do so.

Its the cream/white interior. I was worried about it since I always get black/dark color interior, but I LOVE this interior. Its nicer than I thought....maybe because the interior is spotless.

Enjoy the beast and Welcome !