My two cats are going on a 5 hour car trip with us to our new house. The older cat is panting. I turned the cold air on, but that isn't helping. He also has peed in his cat carrier so I can imagine he is very uncomfortable. We have only been driving for 15 minutes. The other is doing better. They are both meowing a lot of course. I'm more concerned with my older cat's panting. Is he just hot or freaking out? Should I be concerned with this or is that a normal scared reaction. The other one isn't panting.