I guess the options will be available packaged upfront for a one off payment, but BMW is (was?) a luxury/performance brand and their cars are investments - this makes it look cheap.
What looks like a good deal on a late model "luxury" car becomes anything but once the naive new owner discovers it is due for over $10k of scheduled dealer maintenance.
The rich who buy these write them off as disposable status symbols --- not to be confused with reliable daily transportation.
A Z8 is a limited production collector's item, a work of art ---- not a mass production "auto" being sold for use as a reliable transportation appliance.