RORO desinged to carry rolling-stock cargo, such as vehicles, heavy equipments, and containers. It is the most convenient way for lading and discharge, especially for auto shipping.The times that wheeled vehicles carried as cargo on oceangoing ships were treated like any other cargo is gone, because RORO costs less, gains more time.
phonecall record from titanshipping
A: I wanna ship my SUV to New Zealand, do you have RORO?
A: It Ferrari, and you guys better be careful, its Matchbox. are you sure you have RORO?
B: yeah, but i dont think you need it Sir.