A test program was conducted in which 12 full-scale automobiles were crashed under controlled conditions to provide detailed performance data on inflatable occupant restraint systems (IORS). Head, chest, and pelvis, three component acceleration data are presented. Femur and tibia forces, and vehicle acceleration and crush data are also shown.Several different methods of analyzing the IORS are discussed. From these analyses, it is possible to identify reasons for marked deviations from normal IORS performance as well as to rate tentatively the more normally performing systems. The conclusions reached are founded on quantitative data analysis and are of considerable scope for the small data sample available from this program.