I use Green Flag. Their policy wording is:-
Vehicle – means any vehicle which is owned by the Account holder and normally kept at Home provided it:
is either: a car, light van, motorised caravan, estate car, motorcycle or 4x4 off -road vehicle, which is privately registered in the United Kingdom.
carries no more than the number of persons recommended by the manufacturer (and for whom seats are provided) up to a maximum of 9 persons including the driver.
does not exceed (including any load carried) the following limits:
– gross vehicle weight: 3.5 tonnes
– external dimensions: 7 metres in length (excluding coupling device and tow bar), 3 metres in height and 2.3 metres in width.
is serviced, maintained and operated as recommended by the manufacturer and holds a current valid MOT certifi cate if applicable.
is a caravan or trailer of standard make that is fi tted with a standard 50mm tow ball, falls within the size and weight restrictions above and is being towed by another Vehicle that is owned by you and normally kept at Home at the time of the Incident. The weight of the caravan or trailer when loaded must not be more than the kerb weight of the vehicle towing it.
Seems to cover it.
(Never thought to check though until now - (thanks))