A crash attenuator (100) for decelerating an impacting vehicle includes a first end (180) that can be releasably secured to a vehicle, and a second end (120) that is longitudinally spaced from the first end (180). The second end (120) includes an impact member (300) that is movable in the longitudinal direction from a pre-impact position to an impact position. At least a pair of deformable attenuator members (190) are spaced laterally and extend longitudinally between the first and second ends (180, 120). At least a portion of the attenuators (190) are bent in a non-outboard direction when the impact member (300) moves from the pre-impact position to the impact position.