The flag shows that
@chadwick is in the States, so the car may be also and standard UK MOT records will not be available. Maybe mileage is recorded on smog testing or whatever other checks are required in his State. The condition of the car should support the low miles and I would expect it to be almost perfect.
Whilst there may be no excessive wear and tear over the 16 year life various components will have deteriorated. First up would be tyres (tires - see I am bilingual) at 10K the tread will still be a good depth but the rubber will have degraded and be well past the general manufacturers maximum age recommendation of 6 years. Other rubber components, bushes, hoses and belts, are worth checking over as well. Unless there is documentation for fluid changes the brake fluid and anti freeze will probably be overdue a change.
Finally welcome to the forum. If you do decide to buy the car show us some photos and use the accumulated knowledge on here to help you get the best from your Z3 and keeping it running.