Momo steering boss BMW Z3 1997 . A collapsible hub is able to absorb outstanding impacts thanks to a programmed deformation thus dramatically increasing the safety level in case of a collision.& nbsp;<span id=”sceditor-end-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span><span id=”sceditor-start-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span><br>