how does the rear suspension cope with the added load of passengers right on the rear axle, It must be using extreme heavy duty springs/shocks (which would result in a jarry ride) because I doubt it uses hydraulic self levelling suspension to pick itself up like the old mercedes station wagons.
and with such a load and only 1.8 litre to pull it along either the gearing is really low or this van would give really bad fuel economy.