David Cebon is a Professor of Mechanical Engineering in Cambridge University and a Fellow of the Royal Academy of Engineering. He is Director of the Centre for Sustainable Road Freight and leads Cambridge University Engineering Department’s Transport Research Group and the Department’s research theme ‘Energy, Transport and Urban Infrastructure’. Professor Cebon’s research covers the mechanical, civil, and materials aspects of road transport engineering. He has authored or co-authored more than 150 peer-reviewed papers on the dynamics, safety, and environmental performance of heavy goods vehicles. He has a strong current focus on energy vectors.