Reconstruction of passenger vehicle accidents involving side impacts with narrow objects has traditionally been approached using side stiffness coefficients derived from moveable deformable barrier tests or regression analysis using the maximum crush in available lateral pole impact testing while accounting for vehicle test weight. Current Lateral Impact New Car Assessment Program (LINCAP) testing includes 20 mph oblique lateral pole impacts. This test program often incorporates an instrumented pole so the force between the vehicle and pole at several elevations along the vehicle - pole interface is measured. Force-Displacement (F-D) characteristics of vehicle structures were determined using the measured impact force and calculated vehicle displacement from on-board vehicle instrumentation. The application of the F-D curves to reconstruction of passenger vehicle accidents was assessed by comparing the energy absorbed by the structure and calculated equivalent impact speed to the actual impact speed. Further, comparison of F-D curves between vehicle classes, different vehicle models within a class, and different elevations on a given vehicle, are useful for assessment of field crashes which can occur in multiple orientations.