Iyi mashini nubwoko bwibikoresho byiza byimyenda idoda (hamwe no gucapa cyangwa kutabikora) umufuka wubucuruzi, U-gukata umufuka, umufuka w umusego, umufuka winkweto, lente unyuze mumufuka, igikapu nibindi. Gukubita byikora, kubara byikora no gutabaza, byikora gupakira, hagarara mu buryo bwikora mugihe ikirango cyatakaye….