This show is a collection of short stories involving these sentient guinea pig cars. I originally thought they were hamsters, but it was later confirmed in an episode that these are part guinea pig part car/vehicle. There is no voice acting so there is no language/culture barrier to worry about.
This is a show that's perfect for all ages or even the whole family. It's also a good palate cleanser for someone who needs something unique and cute that's pure and innocent.
I would recommend Pui Pui Molcar for fans of Shaun the Sheep and Rilakkuma and Kaoru both are adorable shows with little to no dialogue. Bonus if you enjoy the cloth esthetic that occasionally appears in kids shows.