Towcar of the year EV range

I was interested in the efficiency of the electric vehicles in the Towcar of the year 2022 supplement with this months club magazine.  For me the key piece of information required was missing from the assessment, i.e. how far will it tow on a single charge. The range unhitched was quoted but the awards are for a Towcar so I assume that the towing range would be far more useful to caravan owners. For balance the mpg for fuel driven cars should also be added to the summary section on each car, it is a usual consideration when buying a car. Whilst comfort and towing experience are important so are practicality and running costs.