The EQS is a technological showcase for the electric future of Mercedes-Benz. It has a generous EV driving range, an ultra-high-tech infotainment screen, and a plethora of advanced driver assistance systems (ADAS). It’s tantalizingly quick, has an impressive-looking cabin, and rides in comfort and serene silence down the road. It’s also the most expensive vehicle Consumer Reports has ever purchased, with an as-tested price of nearly $136,000. Even so, we came away frustrated with the EQS’s super-distracting controls and odd-feeling brakes, both of which left us questioning if we’d really want to live with this car on a daily basis.