Whenever we go to Cat & Rabbit in Northampton (which is around 4-5hr drive depending on traffic), we use a large plastic storage box as a makeshift cage for the piggies (lined with puppy pads, then fitch bedding, and then loads of hay and food, we also put a cardboard box they can hide in). They can walk around the box if they want to and the space is much bigger than the carrier. We only put them in the carrier to bring them from the car to the vet. We have something like the photo below. Of course we don't put the lid on. But if in case we'd need them in the whole box and a lid is needed (i.e. to ward off other animals), we put loads of holes (£2 coin size) on the lid. I also pack their fruits and veggies in a sealed container that I can give them during the trip. I always sit with them in the backseat while hubby drives so I know they are safe.
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