A database on EUROSID-1 performances in 31 full scale side impact tests is set up. Specific attention is given to the dummy results in relation to protection performance criteria. Mainly tests according to the proposed European side impact regulation with passenger cars are studied. Other tests included in the database are tests according to the American procedure, reconstructions of tests performed with cadavers (“FAT-tests”) and several tests according to the European procedure with special vehicles. Analysis of the database, considered representative for almost 20% of European cars on the current market, show that EUROSID-1 is sensitive to car design. Differences in thorax and abdomen response of this dummy are obvious between 2/3-door vehicles and 4/5-door vehicles. Differences in dummy responses on the basis of vehicle test weight are less obvious, however it appears that dummy responses decrease with increasing vehicle test weight. The design of EUROSID-1 corresponds with injury assessment needs in side impact car testing. As far as sensitivity is concerned, EUROSID-l is considered an appropriate anthropomorphic test device for approval and research purposes to improve side occupant protection. occupants in interior impacts and also by pedestrians in exterior impacts. At the same time, it is also hoped that the manufacturers of other types of vehicle such as aircraft, railway rolling-stock etc will also wish to develop their own vehicles to provide similar protection.