hi there,
we never had any problem with getting our cats into the campingcar. it probably kicked off when we had the caravan and sometimes used this as an extension bedroom when we had to many "stayers". on the other hand, the car is viewed with great trepidation as this means a trip to the vets although once they are there they are totally relaxed! who will ever understand them? at the onset we did, more or less, leave it up to them to decide by us taking the occasional cuppa into the van at which time they just followed. hopes that this helps you and we wish you the very best in your endeavours and future motorhoming.
glenys and fred.