The Electric Parking Brake is what we like the least about our Z4.
Sadly it appears that all new BMW models have a similar EPB. Although we first noticed it on the e89 Z4, Hill Start assist is not available on the new 4-cylinder powered cars either.
We test drove a new X3 a few weeks ago. Did not have hill start assist and did have the EPB. No idea why BMW has done this, especially on the X3.
The models and equipment (standard and optional) illustrated in this post reflect my misunderstanding of vehicles supplied by BMW AG to the German market. In other EU member states, the truthyness of my posts may vary. Please ignore this post. Subject to change.