The paper explores the concept of coopetition by addressing a situation when business partners start to compete. Specifically, it intends to understand why firms move from cooperation to competition. To achieve this, case studies based on the development of an IT-solution for urban mobility in Brazil are undertaken. The cases show local and foreign MNEs interactions during and after the project. The findings suggest that the higher the level of interdependence, the higher likelihood of developing a cooperative strategy. In contrast, the lower the level of interdependency, the higher is the degree of competition; meaning that partners will choose a competitive strategy instead.