
All commercial vehicles should (they dont allways) have a plate stating a combination of the following:-
Unladen weight (UW)......EMPTY VAN
Cappacity.....WHAT THE VAN CAN CARRY
Laden weight or gross weight......LOADED VAN
Gross train weight or Gross vehicle mass (GTW or GVW)...LOADED VAN AND LOADED TRAILER ALLOWED.
Take the GTW/GVM and deduct the laden weight (or unladen and carrying cappacity) what is left is what you can tow.
If you are allowed to tow 2200KG then it is legal to tow a 2500KG gross trailer so long as you only load it to a gross weight of 2200KG.
It is not legal to move cappacity from the van to the trailer to increase the towing cappability, so running an empty van does not make it possible to tow a heavier trailer.
If you are using the van commercialy you would need to run a tachograph over 3500KG.
The method of working out what a car (M1 class vehicle) can tow is different, that works on the kerbweight of the vehicle in a ready to drive condition, althoiugh a lot of "official" sites will recommend 80% of the kerbweight unless you are experienced, but this is not a legal cappacity.
Regards
MYTHING
