In July 2013, General Motors and Honda announced a long-term, definitive master agreement to co-develop next-generation fuel cell system and hydrogen storage technologies, aiming for the 2020 time frame. At the SAE 2014 Hybrid & Electric Vehicle Technologies Symposium, Mark Mathias, Director, Fuel Cell R&D for GM, provided an update on the collaboration, as well as a brief dive into the technical drivers behind the ongoing automotive efforts on fuel cell propulsion related to the scaling properties of batteries and fuel cells.