Hydrogen Combustion Engines in Commercial Vehicles – New S. I. Engines – Synthetic Fuels – Life Cycle Assessment of Vehicle Powertrains / CO2 Legislation – New C. I. Engines – Battery Storage – Hydrogen Powertrains – Engine Concept / Engine Control – Hybrid Systems – Fuel Cell and Storage – Future Vehicle Drives and Energy – Diesel Exhaust Aftertreatment – View to the Future