Automobiles 945 Congresses 572 Design and construction 379 Motor vehicles 279 Motors 271 Diesel motor 135 Electronic equipment 135 more ... Pollution control devices 115 Internal combustion engines 101 Exhaust gas 96 Combustion 92 Trucks 82 Materials 81 Testing 81 Safety measures 68 Diesel motor exhaust gas 67 Standards 60 Fuel systems 58 Internal combustion engines, Spark ignition 56 Airplanes 55 Motors (Diesel) 45 Research 42 Technological innovations 39 Dynamics 38 Aerodynamics 36 Lubrication 36 Motor fuels 36 Brakes 35 Crashworthiness 35 Mathematical models 35 less ...