Due to an adorable evolutionary miracle, guinea pigs have become furry automobiles known as "Molcars." Now, drivers can enjoy the fluffy interior of their vehicles while fulfilling their every transportation need. However, Molcars are not simply lettuce-fueled machines; they are also sentient creatures with their own worries and desires. Whether in their drivers' presence or among each other, these motorized rodents are swept up into many wild and eventful situations—the likes of which only a Molcar could wind up in. [Written by MAL Rewrite]

Pui Pui Molcar's production took a year and a half; its stop-motion animation incorporates elements of traditional 2D animation, pixilation, and time-lapse photography. The series won the Social Impact Award at the 25th Japan Media Arts Festival. The anime was released on Blu-ray and DVD in box sets on July 28, 2021. The series has been adapted into multiple children's pictures, art, and activity books. A video game titled Pui Pui Molcar: Let's! Molcar Party! featuring the Molcar characters was published by Bandai Namco Entertainment on December 16, 2021 for the Nintendo Switch.