Siemens Mobility, a rail transportation company, is leveraging Grafana Enterprise to transform its trains into advanced data-driven systems, enhancing both maintenance operations and customer service. By treating trains as "data centers on wheels," Siemens Mobility is employing Grafana to rapidly process millions of data points from train sensors, thereby enabling the identification of potential faults and optimization of maintenance activities. This digital transformation, led by Martin Klimmek and his team, includes upgrading older trains with smart technology and aims to establish a self-service system for staff and customers. The initiative not only supports seamless operation and proactive maintenance for Siemens' rolling stock but also represents a broader vision of integrating observability tools across all aspects of rail service, showcasing the potential for technological advancement in the transportation sector.