Tufafin yana da ayyuka na kariyar aminci, yin ado da abin hawa da haɓaka halayen motsin motsin abin hawa. Dangane da aminci, zai iya taka rawa mai mahimmanci idan akwai haɗarin haɗari mara sauri kuma yana kare gaba da baya; Yana iya ba da kariya ga masu tafiya a ƙasa idan akwai haɗari tare da masu tafiya. Dangane da bayyanar, yana da kayan ado kuma ya zama muhimmin sashi don yin ado da bayyanar motoci; A lokaci guda kuma, motar motar motar kuma tana da wani tasiri na aerodynamic.
A lokaci guda kuma, don rage raunin da fasinjoji ke samu a cikin haɗarin haɗari, yawanci ana sanya ƙofofin ƙofofi akan motoci don haɓaka tasirin hana haɗari na kofofin. Wannan hanya tana da amfani kuma mai sauƙi, tare da ɗan canji ga tsarin jiki, kuma an yi amfani dashi sosai. Tun a baje kolin motoci na Shenzhen na shekara ta 1993, Honda Accord ya bude wani bangare na kofa don fallasa kofar shiga ga masu sauraro don nuna kyakkyawan yanayin tsaro.
