Bumper yana da aikin kariya mai aminci, kayan ado da inganta halayen Aerodynamic na abin hawa. Daga Zango mai aminci, motar tana iya taka rawar da ke faruwa a lokacin da hatsarin haɗari mai saurin haɗarin, don kare jikin motar da ke gaba da baya. A cikin taron na hatsarori tare da masu tafiya masu tafiya suna iya taka rawa wajen kare masu tafiya da ƙafa. Daga bayyanar, yana da ado kuma ya zama muhimmin sashi na bayyanar motar ado na ado. A lokaci guda, bumpers carpor suma suna da wani tasirin Aerdodynamic.
A lokaci guda, don rage lalacewar mazaunan kan batun hatsarin hatsarin, motoci yawanci suna sanye da ƙarfin ƙirar tattarawa daga ƙofofin. Wannan hanyar tana da amfani, mai sauki, ƙaramin canji ga tsarin jiki, an yi amfani da shi sosai. Tun da wuri kamar 1993 Shenzhen International Mayunobile Multiple Moneyobile Multice Autin International ne ya fallasa bliple ga masu sauraro don gani, don nuna kyakkyawan aikinsa na aminci.
Shigowar ƙofar ƙofar yana cikin kowace ƙofar fararen mota a kwance, don haka kuyi aikin murfin motar na baya, don haka motar ta zama "baƙin ƙarfe bangon", saboda motar ta ke da matsakaicin yankin tsaro. Tabbas, shigarwa irin wannan ƙafar ƙofar ba shakka zai ƙara yawan farashi don masana'antun masu kera motoci, amma ga mazaunan motar, aminci da kuma fahimtar tsaro zai ƙara yawa.
