Just check your manual, dead easy.
It would be dead easy if the permissible weights were actually detailed in it, but they aren't - well not in mine.
The VIN sticker is the only reference for the permissable weights.
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I towed with my Omega estate everything was quite clearly stated in the owners handbook, why would it not be ?
I towed with both of my Omega estates and many cars before them and the info was definitely there to make use of.

If I remember correctly the car plate showed the max car weight, max gross train weight and max axle loads. Edit: Just looked at the sticker online and it's definitely got that info.
You then obviously need the kerb weight, which should be in the hand book to show various derivatives.
The caravan plate has always showed variations of MIRO (Mass in running order - caravan weight empty), MTPLM (Maximum technically permissible laden mass - the heaviest the van should be fully loaded) and Payload, which is generally the difference between the other two figures.
As we all know, or should do if we tow, the main thing is to find the vehicle kerb weight and then choose a caravan that has a MTPLM which is equal to or preferably lower than the vehicle kerb weight (the unloaded tow vehicle). That means that your empty tow vehicle should be equal to or heavier than your loaded caravan, so when you load your tow vehicle it will outweigh the loaded van to an even greater percentage.

You can word this how you like but that's the safest combination. The tow vehicle maximum towing weight and maximum loaded weight is rarely of interest unless you think you are getting close to breaking the gross train weight, which is an offence. I've seen caravans being escorted to a weigh bridge.

This isn't aimed at anyone, as anyone that's tows would already know this. It's just a generalisation of the calculations for those not aware of the calculations.
