Proper way to remove ellipsoid wheel center cap?

OK, I feel silly for having to ask this but since I don't know how and can't find an answer posted anywhere I'll ask. What is the proper way to remove the center cap on the ellipsoid wheels without breaking the cap or scratching the wheel? Is it best to use a plastic trim removal tool or just be very careful with a screwdriver? Thanks in advance!

I use a large flat blade screwdriver (you can use the one in the trunk toolkit). Insert into the small cutout in the cap and pull towards you, which avoids scratching the wheel. The cap will pop off.

When you re-install, line up the tab on the back of the cap with the indent on the wheel then just push with two hands.

Thanks, appreciate that! Having chipped plenty of flimsy plastic center caps on other cars over the years I didn't want to risk "experimenting" on the 6's otherwise pristine wheels. I half expected BMW would require some proprietary tool for the job.