As it is just a voluntary, be thankful for that as i cant imagine what of this is compulsory. I think it works best for those old general cars like kancils, wiras, iswaras (tons of them), saga, sunny and so on as those car hardly reach 5k++ by the time they r 15 yrs old. Of coz i wont ask to scrap an 15 yr old Porsche or merc which may value up to 10-20k still.