In the reward systems of companies, company cars represent an important motivational factor for executives. Expenses for the vehicle fleet often account for the second highest cost factor after personnel costs. To meet the demand for vehicles in large quantities, especially for international large corporations, automobile manufacturers are increasingly establishing key account management departments and developing new marketing and sales processes that are implemented internationally. This study aims to draw greater attention to key account management in the automotive industry. Markus Seidler first uses system theory to identify the stakeholders in key account management and the relationships between them. The processes are presented within a process model, divided into four process levels.