In my Skoda handbook it states very clearly the cars kerbweight includes the EU 75kg, 90% tank of fuel and driver, for my car 1,495kg, which is the same weight on my V5C document as mass in service. What you then put in the car is payload, passengers, load, roof load, noseweight on tow ball and for me the dealer fit towbar and optional steel spare wheel, not in the mass in service. My towing ratio is 82% based on mass in service and caravan MTPLM, looking at another van which would take me to just over 90%, my tow limit is 1,600kg other variants are less.
The plated GVW is 2095kg, GTW 3695kg