What's the name of four-wheel drive brother Aji's sister?

Hello, I'm glad to answer your question:

Sister Aji first appeared in "Four-wheel Drive Brothers", Part I, Episode 46, "The Last Chance with Sparks".

At the beginning of this episode, she appeared. At the invitation of Dr. Great God, Sister Aji flew from the United States and came to Japan in her chariot Raptor to participate in the final qualifier of the Japanese Super Cup competition held here and finally won the championship! Strength should not be underestimated! Is a very powerful person!

This is the video link of the 46th episode:/v _ show/v _ show/id _ xmjcxnjaxmju2.html.

I hope my answer can help you!