They focused on ergonomics, which includes the possibility of using the gearshift selector in an intuitive manner, but also on the safety features implemented with those units to determine whether they are potentially dangerous.
The analysis made by Consumer Reports has gone as far as reducing the score of some of the models its editors have tested, and they were kind enough to make a list of all the vehicles that had poorly designed gearshift selectors.
The biggest problem with electronically-controlled gear selectors seems to be the inability of clearly showing the driver what gear is currently selected. Linked to this is the possibility of opening the driver’s door when the car risks rolling away, and some cars could allow users to do this without an explicit notification.
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