The problem is that in the handbooks it will give you all sorts of max permissable towing weights, but don't be fooled by these!!!! or what the salesman says!
The only SAFE way of finding out what your max permissable weight you can tow is.........................
Empty the car of all the parafanalia (junk) you normally carry around....... fill the car with fuel..... go to your nearest public weighbridge......have the car weighed with you (driver only)in it....ask for the weighbribge certificate, which will state the weight of the vehicle as weighed, that is the true unladen weight of your car, (public weighbridges have to be acurate (calibrated) as the police use this as evidence in prosecutions where they suspect a vehicle is overloaded) and that IS THE MAXIMUM weight of a braked trailer (caravan) you can legally tow.......UNLESS the manufacturer states a LOWER MAXIMUM PERMISSABLE WEIGHT of a braked trailer or lower GTW (Gross Train Weight, fully loaded car & trailer).
For example, My Audi A4 2.0 TDi Avant, most of the sites for matching the outfit state that the unladen (kerbside) weight of this car is 1480kg, Audi state 1618kg, public weighbridge weight is 1621kg. But handbook states max permissable braked trailer weight is 1800kg!!!!!!!!
Previous car, Merc A class 1.7 CDi, kerbside weight 1246kg, but max permissable braked trailer weight 1000kg, giving me a payload of just 60kg on the caravan, only one trip with the caravan....what an exprience that was!!!! unstable or what!!!!!needless to say I didnt keep that car long!
GeorgeB