Two critters leave their home town together on a road trip in a red (i think) car. They journey through what I recall as a European type landscape, I remember mountains and a ferry. When they finally come back to their home it looks different to them because they have seen the world now.
The Wind in the Willows
It’s a shorter book than Wind in the Willows, more of a picture book, and published more recently, I’d say within the last 20 years.
*note – I’m the original poster
OP here – The book is shorter than the Wind in the Willows, more of a kids picture book, and more current. I would guess it was published in the last 20 years.