The art style is eyecatching. The car mechanic is working quite well. I think it can be upscaled to a good indie racing game. Although the game is still rough as it's a game jam submission, I still feel quite enjoyable to drive through the track. My only suggestion is that, it may be better to tilt the camera a little bit so that i can see more of the road.
However, as other says, the "magical girl" part seems missing.