Nikki has dark brown eyes and long hair of same color, which she usually keeps tied in a ponytail. Her height is 170 cm. She's around thirty and is a professional street racer and mechanic. Nikki is a Canadian the daughter of French immigrants. And her birthday is on June 23.
Her usual outfit is a blue shirt, brown coat, khaki skirt, and black high-heeled boots. Alternatively Nikki often wears a sleeveless gray t-shirt that has a horse printed on it, as well as some jeans.