A safety arrangement is provided in a motor vehicle. The motor vehicle has a floor pan (1) terminating at its forward end with an inclined splash-wall (3, 4, 5). There is a moveable floor element (10) which has regions (12, 13, 14) which initially conform to and lie adjacent the splash-wall. There is a drive arrangement (15) associated with an accident sensor (16) to drive the moveable floor element rearwardly to a predetermined position. There is a fixed platform (17) located above a horizontal part of the floor pan to be located beneath the foot of a vehicle occupant and to provide a secure point for operation of a pedal. The movement of the moveable floor element (10) is restricted so that no part of the movable floor element impedes movement of a foot pedal (6) to the fully depressed condition.