Electronic controls play an invisible role in making each new model year's vehicles better than before. Case in point is the 2015 Hyundai Sonata. In this week's SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at how electronics improve the 2015 Hyundai Sonata Eco. SAE Eye on Engineering can be viewed at http://youtu.be/M6wYkfZOp8Q. It also airs Monday mornings on WJR 760 AM Detroit's Paul W. Smith Show. Access archived episodes of SAE Eye on Engineering at www.sae.org/magazines/podcasts.