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This paper provides a summary of preliminary results of three car-to-car 90-degree lateral impact crash tests with initially restrained Hybrid III and US-SID dummies. These tests comprised part of a collaborative research project between Monash University, Autoliv Australia and the Royal Automobile Club of Victoria. The overall research project objectives were to investigate the nature of non-struck side occupant injuries in automobile side impacts and to develop technical solutions to reduce these injuries. The test program results showed that a sash belt with a pretensioner and good geometry was effective in reducing occupant lateral excursions and lap belt loads. An increase in occupant neck loading was however observed and measured. Lateral torso seat restraints helped to prevent direct contacts between adjacent occupants resulting in a reduced HIC measured for a non-struck side occupant dummy.