Her wheelchair reference! Auriga can switch between the two modes at will, but usually reserves the racing mode for actual racing. Though she can bring it out when she’s really got somewhere to be! The small handles near the front wheel are used for turning the wheel at curves.

The constellation symbol for Auriga was originally designed by Denis Moskowitz and released to the public domain. https://www.suberic.net/~dmm/astro/constellations_t.html