At one of the main karting championships in Brazil, the San Pablo Cup in Granja Viana, a group of feisty children between 8 and 12 years old are growing up in the fast lane of competitive karting.

At one of the main karting championships in Brazil, the San Pablo Cup in Granja Viana, a group of feisty children between 8 and 12 years old are growing up in the fast lane of competitive karting.