Crush cans for motor vehicles are provided herein. An example crush can includes a first open end, a second open end, and a longitudinal axis running from the first open end to the second open end. The crush can further includes a top wall, a bottom wall, a first side wall and a second side wall. The top wall and the bottom wall taper from the second open end towards the first open end. The crush can uniformly collapses when under compressive forces along the longitudinal axis.