The center piece function is, as you may be aware, standard voice control. Say "Hi Mercedes" and you can adjust the temperature or adjust the radio without taking your hand out of the wheel. If you don't care to talk to your car, MBUX still delivers a high digital interface between the 7-inch screen-based instruments and a corresponding touch screen for the infotainment system. We found it surprisingly intuitive in our hands-on last summer, and its behavior evolves with your habits.
You also get an exceptionally wide repertoire of security features. The core A-class touts help braking, crosswinds and hill starts while you can spring to more luxurious technologies like remote control cruise control (aka Distronic) and steering assistance. Yes, the price is likely to climb quickly if you cross all set boxes, but it does have to buy a more expensive Mercedes just to relax when you stand behind the wheel.