Automobiles 467 Springs and suspension 456 Design and construction 125 Steering-gear 120 Maintenance and repair 56 Wheels 39 Alignment 37 Motor vehicles 32 Dynamics 28 Automatic control 24 Magnetic suspension 22 PID controllers 20 Automobiles, Racing 16 Suspension systems 13 Magnetic properties 12 Materials 12 Springs and suspensions 12 Brakes 10 Fibrous composites 10 Tires 9 Active automotive suspensions 8 Agriculture 8 Reinforced plastics 8 Electronic equipment 6 Four-wheel steering 6 Mechanical engineering 6 Railroad trains 6 Shock absorbers 6 Sport utility vehicles 6 Testing 6