This later OVA is set during the timeframe of the Fourth Stage . It primarily explores Mako’s continued feelings for Iketani and her evolving career as a professional racer. Potential Confusions
If you are looking for more content involving Mako and Sayuki, these are the existing installments:
Users sometimes search for an "Episode 3" due to several other third installments in the franchise:
what's the order to watch the series in in chronological order? : r/initiald
These episodes take place around the events of the Second Stage and Third Stage . They follow the team as they defend their home course, Usui, against a scouting party from the Emperor team and deal with personal romantic struggles.
To address your request directly, there is no official . The Extra Stage series consists only of two parts: Extra Stage (released in 2000 with two acts) and Extra Stage 2 (released in 2008 as a single OVA).
The Extra Stage OVAs focus on the duo, Mako Sato and Sayuki , exploring their lives and racing outside the main series' primary focus on Takumi Fujiwara. Breakdown of the Extra Stages