We may not have cars that drive themselves yet, but BMW is working on a navigation system that can learn your driving habits and improve the efficiency of the car. The BMW system is called ILENA, which stands for Intelligent Learning Navigation. The system records data during your typical daily commute to learn your route, road gradients, curves, and breaking points. The system also uses a camera to get a view of your path. Say your everyday commute involves a quick acceleration from 0-50 to merge onto a freeway,