▁f ender / door ▁shut ▁pressing ; ▁the ▁side ▁light ▁configuration ▁and ▁the ▁bod ys ide ▁‘ ha unch ’ . ▁Chief ▁Program ▁engineer ▁Russ ▁Var ney ▁said ▁the ▁X J ▁also ▁taught ▁J agu ar ▁" about ▁the ▁spring back ▁of ▁stamp ed ▁parts , ▁where ▁the ▁pieces ▁won ' t ▁keep ▁their ▁exact ▁shape ." ▁ ▁To ▁reduce ▁front - end ▁collision ▁repair ▁cost ▁and ▁am el ior ate ▁increased ▁ins urance ▁rates ▁associated ▁with ▁al umin um ▁construction , ▁the ▁body ▁was ▁designed ▁to ▁with stand ▁an ▁impact ▁of ▁ 1 0 ▁m ph ▁without ▁struct ural ▁damage ▁and ▁used ▁a ▁b olt - on ▁front - end ▁module ▁( BO FE ). ▁A ▁hydro formed ▁al umin um ▁extr usion ▁with ▁an ▁energy ▁absor bing ▁fo am ▁cover ▁formed ▁a ▁b um per ▁beam ▁cross - member , ▁to ▁provide ▁strength ▁and ▁cr ush ability ▁in ▁the ▁event ▁of ▁a ▁minor ▁collision . ▁Sac r ific ial ▁extr ud ed ▁al umin um ▁" cr ash ▁can s " ▁were ▁designed ▁to ▁protect ▁the ▁body ▁structure ▁and ▁front - end ▁component ry . ▁ ▁Ste el ▁is ▁used ▁for ▁front ▁and ▁rear ▁sub frames ▁and ▁mag nes ium ▁( as ▁strong ▁as ▁al umin um ▁while ▁ 3 0 ▁percent ▁l ighter ) ▁is ▁used ▁for ▁seat ▁frames ▁and ▁later al ▁instrument ▁panel ▁beam . ▁ ▁J agu ar ▁had ▁previously ▁and ▁prom in ently ▁used ▁al umin um ▁construction , ▁in ▁the ▁X K 1 2 0 ▁which