A vehicle seat power track for an automobile vehicle seat which includes a sensor arrangement to detect the seat position along the track relative to a front airbag apparatus and generate a signal to control the apparatus of the airbag. 5 and 30% by weight, wherein the at least one metal ion is selected from a metal ion of the elements La, Ce, Cu, Ag, Zn, Sn, Ca, Mg, Fe and Mn. Lubricating means are arranged on end caps of the slider, one on each end cap. In response to a determination that the performance threshold is met, the data centers can determine that a time-based threshold is met.