Automobiles 921 Congresses 580 Design and construction 372 Motor vehicles 274 Motors 267 Diesel motor 134 Electronic equipment 134 more ... Pollution control devices 113 Internal combustion engines 99 Exhaust gas 94 Combustion 92 Testing 80 Trucks 80 Materials 79 Diesel motor exhaust gas 67 Safety measures 65 Internal combustion engines, Spark ignition 58 Fuel systems 57 Airplanes 54 Standards 53 Motors (Diesel) 45 Technological innovations 39 Dynamics 38 Research 38 Lubrication 36 Aerodynamics 35 Crashworthiness 34 Electric vehicles 34 Mathematical models 34 Motor fuels 34 less ...