Teinenpi Shoujo Heidi
Japanese title: 低燃費少女ハイジ
Alternative titles: Low Fuel Cost Girl Heidi
Type: ONA
Source: Book
Episodes: 8
Status: Finished Airing
Aired: May 2009 to Jul 2010
Duration: 3 min per ep
Rating: G - All Ages
Studios: Studio Crocodile
Genres: Comedy
Themes: Parody

Commercial web animation made for Nissan Note. Despite being a commercial, the content is highly independent, starting with a little girl keep asking everyone what is "Teinenpi", a kanji word meaning low fuel cost. 

It features a parody of the classic anime "Heidi" in 1974 but directed by Mr. Fumihara Satoshi, the director of the gag anime "The World of Golden Eggs".

It also features Mr. Koumoto Junichi playing multiple roles including: Heidi's Grandpa, Peter, Kurara and the sheep!

(Source: news.searchina.ne.jp)