Fel rhan o brawf wyth wythnos, bydd y Volvo 7900E diweddaraf yn teithio ar hyd y Llwybr 6 arferol, gan fynd â theithwyr o'r ganolfan ddinesig, drwy ganol y ddinas i Fae ysblennydd Caerdydd.
Running as part of an eight-week trial, the state-of-the-art Volvo 7900E will run along the regular Route 6, taking passengers from the civic centre, via the city centre and on to the scenic Cardiff Bay.