The majority of vehicle crash tests have utilized the stationary barrier. This analysis shows the relationship between a stationary barrier crash and a movable barrier crash. The barrier-vehicle crash is simulated by a simple two mass non-returning spring system. The relationships between vehicle weight, barrier weight and vehicle crush are shown. The seat belt loads for various crash conditions are also included to give an indication of the relationships which control occupant deceleration in vehicle-movable barrier tests and vehicle-stationary barrier tests.