This article explores the importance of understanding consumer behaviors in the automotive industry and how it can help companies improve the effectiveness of their advertising campaigns. With research showing that purchasing a car is a group decision, automotive companies need to take a more holistic approach to their marketing efforts and target not just the individual who will be driving the car, but also their family members who may be involved in the decision-making process. In addition, building brand loyalty is crucial for companies, as existing car users are more likely to purchase a new vehicle. By leveraging Marketing Mix Modelling and Data Science, companies can analyze customer data and tailor their marketing efforts accordingly, and Indaru specializes in providing these services to help automotive companies stay competitive in the ever-evolving industry.