The Pinto's design positioned its fuel tank between the solid live rear axle and the rear bumper, a standard practice in US subcompact cars at the time.[66] The Pinto's vulnerability to fuel leakage and fire in a rear-end collision was exacerbated by reduced rear "crush space", a lack of structural reinforcement in the rear, and an "essentially ornamental" rear bumper (though similar to other manufacturers).[67]