on if you are moving accross states like Texas that can take over a day to drive through.
I would say get some pet carriers (about $15 ea)for them and let them rotate at riding shotgun. Mine love to look out the window when I drive, They sit up on the dash sometimes holding the steering wheel. If they will take food from your hand thenm you can give them collard or dandilion... as snacks along the way. otherwise just put some greens in their carrier. Stop and have a family picinic. Just make sure you keep them hydrated and I don't think you will have a problem.
some lizards like cars more than others

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Bennett

Home of the Florida Orange
www.beardiedragon.com