Heavy panting in the car

We took freddy in the car (not the first time) and he just started panting like crazy. He's been in the car a few times and never done it. He doesnt pant that much when he's done 5 laps around the field D:

Any idea why? nerves maybe?

i reckon he could be just excited hes going for a spin in the car, where did ye go the last time ye went for a spin in the car, did he have a good experience i.e. a long walk or a run in the fields. if he did then this would explain his panting. and if he a had a bad experience the last time he was in the car his panting could be brought on by anxiety.