What eco-friendly feature does the QX55 offer to enhance fuel efficiency?

The QX55 offers an Eco driving mode as an eco-friendly feature to enhance fuel efficiency. This mode is specifically designed to optimize the vehicle's performance by adjusting engine and transmission settings to improve fuel economy. When activated, the Eco driving mode typically modifies acceleration responses and enhances efficiency during everyday driving conditions, allowing drivers to decrease fuel consumption and reduce emissions.

While a performance driving mode and a turbocharged engine can provide enhancements in power and performance, they do not primarily focus on fuel efficiency and could lead to increased fuel consumption under specific driving conditions. Similarly, the absence of a hybrid option indicates that the QX55 does not utilize a dual-fuel approach that combines traditional fuel with electrical power, which might also enhance efficiency. Therefore, the Eco driving mode stands out as the key feature that specifically targets improving fuel efficiency in the QX55.