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)

There are many street races in the Initial D Series. This OVA has no plot other than to collect all the street races into one stage. The dialog during the original races is left in.

Iketani missed an opportunity to see Mako-chan and hates himself for never calling to say he was sorry. By chance he runs into her 6 months later, and the situation is awkward. Iketani does not have time to talk at that moment, but both want to talk, so they arrange a second meeting. Iketani goes to the meeting place early, but an old man was left behind from an tourist bus, and asks Iketani to catch the bus for him. Iketani being a nice guy, so he can't say no.

The Lancer EVO-driving group "Emperor" have defeated every racing team they've met in the Gunma region. Now they're out to challenge the duo of Mako and Sayuki and their SilEighty - the Impact Blue of Usui Mountain. (Source: ANN)