Cat in a motorhome - is that possible?

When we moved into the UFO, our two cats were already 15 years old. It was a risk. We were aware of that. But it worked. After initial difficulties. Today, the motorhome is also home to the (now only one) cat. She understood and knows how to do it. The topic of dogs is still critical, so if there is any danger, it is better to keep her on a leash - that way, we know where the cat is.