The auto industry's crusade to reduce vehicle weight is creating clever new manufacturing techniques. In this episode of SAE Eye on Engineering, Editor-In-Chief Lindsay Brooke looks at GM's new process which enables steel and aluminum to be welded together. SAE Eye on Engineering can be viewed at http://video.sae.org/12175/. It also airs in audio-only form 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.