THE CONVENTIONAL METHODS OF CUSTOMIZATION OF DIFFERENT CAR VERSIONS ON THE SAME PRODUCTION LINE, AS WELL AS THE CUSTOMIZATION OF DIFFERENT VERSIONS OF A PARTICULAR MODEL, OBLIGATE THE CAR MANUFACTURER TO PRE-ALLOCATE A VARIETY OF CONTRIVANCES TO ALLOW FOR THE EXECUTION OF THE MAXIMUM NUMBER OF OPTION COMBINATIONS. THE PRE-ALLOCATION OF THESE VARIED CONTRIVANCES IS NOT ONLY LOGISTICALLY CUMBERSOME, BUT IS ALSO EXTREMELY COSTLY. FOR THESE REASONS, IT WOULD OBVIOUSLY BE PREFERABLE TO IMPLEMENT A WORKABLE JUST-IN-TIME PHILOSOPHY OF PRODUCTION IN WHICH OPTIONS MAY BE DETERMINED AS LATE AS POSSIBLE ON THE BODY-IN-WHITE ASSEMBLY LINE.