What is the difference between payload and gross
A goods vehicle is legally limited to a gross weight, the total weight
allowed on the wheels. The amount of weight that a vehicle can carry
(its payload) is therefore the gross weight LESS the unladen weight of
the vehicle. This is why a 3.5t box van with a larger loadspace actually
carries less weight than a 3.5t MWB or LWB panel van equivalent.
Acrobat refers to all vehicles on its fleet by their gross weight.