Bumpety Boo(1985)

Hey! Bumboo

Bumboo is a very strange car-like creature with a cute yellow body.He was born from a mysterious egg at an automobile factory.Having heard the first cries of a newborn baby, a boy named Ken comes to the factory and meets Bumboo.They soon become good friends and set out on their exciting journey.

Traveling the world with his four-wheeled friend and Mister the dog, Ken faces big trouble from Doctor Monkey-who wants to get Bumboo into his own hands-but finds thrills and excitement around every corner.

(Source: AniDB)