Cruising along on the autobahn at 220 kilometers per hour (136 miles per hour) is equal parts exciting and anxiety-inducing because my brain can’t shake the feeling I’m still breaking the law. That concern didn’t stop when I pulled over. I also experienced some apprehension about using BMW’s Display Key to control the $73,900 BMW M550i sedan.
The Display Key with its tiny touchscreen basically replaces a lot of the features found in a car’s companion app. Drivers can lock and unlock doors, set the temperature in the car and check on their fuel level from a range of about 980 feet.
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