Impact Blue vs Satake

The battle between Impact Blue and Satake is an extra battle featured in Volume 48 of the manga and in Initial D: Extra Stage. It is canonically the 15th battle of Initial D.

Prior to the Battle
Two members of Team Emperor went to Usui Pass to scout the area. When Impact Blue arrived, Satake wanted to battle the two, but Ren Nogami thought this wasn't such a good idea, because they only came here to look at the area. Impact Blue accepts the battle and starts by leading.

During the Battle
Sayuki notes at the beginning that Satake is keeping up with them by drifting. Soon she realizes Mako has indeed become more faster ever since she least battled with Takumi. Sayuki then suggests Mako to go at her full speed to enter the C-121 hairpin, which they do. The Satake followed them at the exact same speed, not realizing he came in too fast for his car's tyre potential, which caused his Evo IV to understeer wide into the corner and hit the guardrail, causing him to spin out to a stop. Sayuki realizes Satake is now no longer following them, meaning they won the battle.

After the Battle
Shingo Shoji and Takeshi Nakazato arrive too late, when Sayuki tells them they've won the battle, which surprised them. Satake tells Ren not to tell Kyoichi about this battle.

Extra Stage

 * Impact Blue - Michiko Neya & Yumi Kakazu