A character featured in the "Umamusume 2016 PV":[https://youtu.be/HYrVKLBhitE].

It is speculated among fans that she was [[twin_turbo_(umamusume)|Twin Turbo]]'s original design, but there is no confirmable source. She does not appear anywhere else in the series, and is presumed to be a scrapped design.

Usually referred to as "Old Turbo", "Prototype Turbo", or "Proto Turbo".
twin turbo (umamusume) (prototype)