PrefaceChapter 1 - Dynamic Behaviour and Characterization of automobile Catalysts, Shinichi Matsumoto and Hirofumi Shinjoh, Toyota Motor Corporation, Aichi, JapanChapter 2 - Simulation of Automotive Emission Control Systems, Mehrdad Ahmadinejad, Maya Desai, Timothy C. Watling and Andrew P.E. York, Reading, U.K.Chapter 3 - Current Status of Modeling Lean Exhaust Gas After-Treatment Catalysts, A. Guethenke, D. Chatterjee, E.M. Weibel, B. Krutzsch, P. Koci, M. Marek, I. Nova and E. Tronconi, DaimlerChrysler AG, GermanyChapter 4 - Advances in the Science and Technology of Diesel Particulate Filter Simulation, Athanasios G. Konstanopoulos, Margaritis Kostoglou, Nicholas Vlachos and Evdoxia Kladopoulou, Aerosol and Particle Technology Laboratory CERTH/CPERI, Thessaloniki, Greece