What unique element is featured in the QX55's digital displays?

The QX55 features a fully digital driver information display, which is significant because it provides a modernized and customizable interface for the driver. This means that information such as speed, navigation, and various vehicle statistics can be shown in dynamic formats and tailored to the driver’s preferences, enhancing visibility and ease of access while driving. The digital display can adapt to provide the most relevant information, helping to keep the driver focused on the road.

In contrast, other options do not highlight the unique advancements of the QX55's digital displays. The existence of an analog speedometer with digital readings would not fully leverage the benefits of modern technology that a fully digital display offers. A split-screen display for driver and passenger, while beneficial, is not unique to the QX55 and is more about passenger experience than driver functionality. A holographic projection system for navigation represents an advanced technology, but it is not a feature of the QX55, which instead focuses on delivering a fully integrated digital driver information experience.