Which reminds me. There was* a constant bickering on the Vito Facebook group about towing limits. People were divided between:
a) The figure stated in the handbook and on the V5 (2000kg).
b) The gross train weight as stated on the chassis plate, minus the actual kerb weight of the van including all its contents at the time of towing, which for a mostly empty van would mean being allowed a trailer of around 2500kg gross.
* probably still is, but I stopped going there because it was mainly focussed on what lowering springs were cheap and what were the biggest wheels you could fit, which isn't why I bought a van.