Roll-on Roll-off vessels can transport vehicles as part of an integrated transport system.  This is of particular importance for high value goods as inland shipping operates just-in-sequence where 100% reliability is more important than speed.

600 Renault cars a day are shipped into the Paris region via inland waterways to avoid traffic jams. Renault already has a long tradition with inland navigation (since 1966!) and is constantly increasing the use of this mode of transport. Some 34,000 special cars for central and eastern Europe are transported each year by road or rail from factories in France to the port of Vienna. From there on, about 5,600 cars are transhipped to barges on the Danube to travel to Budapest, each vessel transporting 250 cars. Renault also imports cars manufactured in Romania on ro/ro vessels of Willi Betz into Western Europe via the Danube between Vidin and Passau. New BMW and Mercedes cars take the return trip.

Suzuki, Mitsubishi and Ford use the Danube between Kelheim and Budapest. Ford, with a manufacturing plant located in Genk along the Albert Canal, also uses inland waterways in Belgium. Thanks to the dedicated ro/ro vessels of Cobelfret that can navigate both at sea and on waterways, finished cars travel without transhipment overseas to Great Britain, in 24 ship movements a week to carry 650,000 cars a year, operating 24h a day. The new vessels can ship 500 cars at once, and are specifically designed to navigate on waterways with limited air and water drafts - they have a removable weather deck and the height of each deck can be modified automatically.