I did a fair bit of research on towing last year & passed my B+E.
What your saying here I don't believe to be correct. The car can only tow a trailer rated to 1800kg MAM irrespective of the trailer being loaded or not.
Originally Posted by
ROG.
Where a towing capacity is listed then this would be a legal example:-
CAR has GVW of 2000 and a towing capacity of 1800
TRAILER has a MAM of 3500 and an unladen weight of 1000
The trailer can be loaded with a maximum weight of 800