Ibi bikoresho nibisekuru bishya byumurongo wa cake watejwe imbere nisosiyete yacu, kuva kuvanga no gukora, gusohora ibikoresho, guteka, kuzuza, kuzunguruka, gukata, gukonjesha, kuboneza no gupakira.
Iyi mashini igenzurwa byuzuye na mudasobwa ifite inshuro nyinshi, urumuri, amashanyarazi, gaze, ituma ibikorwa byoroha, bizigama ingufu, kandi urebe neza ko ibiryo bifite isuku kandi hamwe nigihe kirekire cyubwishingizi bufite ireme, urashobora guhitamo ubwoko butandukanye bwitanura rya tunnel (nkibyo nk'amashanyarazi, gaze gasanzwe, mazutu, amavuta yubushyuhe).