Ibisobanuro bigufi:

Iyi mashini irakwiriye gukata icyayi cyirabura nicyayi kimenetse. Amababi mashya anyura mu nsoro zumye cyangwa zibanza. Amababi yicyayi yinjira mumyanya ya mashini abinyujije mu cyuma kizunguruka, kandi amababi yicyayi ku bufatanye bwa moteri hamwe nudukuta twa rukuta. Yakorewe kuzunguruka cyane no kugoreka, hanyuma igacibwa na disiki ikata, hanyuma ikorerwa imitekerereze ikwiye ya plaque yurubavu kugirango isohore umwobo wimashini.