Long-term fuel efficiency can be displayed in two ways – either as a traditional chart or using an innovative display that shows “growing leaves and vines” on the right side of the cluster. The more efficient a customer is, the more lush and beautiful the leaves and vines, creating a visual reward for the driver’s efforts.
— Driving a car as a video game (2010 Ford Fusion Hybrid: Ford SmartGauge LCD Instrument Panel)