Kellie "Gearbox" Kalinkov is a Russian driver who appeared in the Speed Racer movie and the game Speed Racer: The Videogame (2008). She drives a colourful T-180 called the "Matryoshka". In the movie, she is seen during the Grand Prix race. In the videogame, her ally is Rosey Blaze and her rival is Booster Mbube.