Achieving fidelity in testing and validation requires more than just robust datasets – it demands a quantifiable bridge between functional models and the physical realities of the vehicle environment. This panel will explore the challenges of ensuring that virtual simulations and synthetic data deliver results that are both reliable and transferable to real-world scenarios. Our experts will discuss how to balance efficiency with accuracy, and what methodologies are emerging to validate not only perception systems but also complex in-cabin technologies. With a focus on driver and occupant monitoring systems (DMS/OMS), we’ll examine where synthetic data excels, where it falls short, and how it can be effectively combined with real-world testing. Join us as we consider the future of validation frameworks that ensure trustworthy fidelity – enabling safer, smarter, and more human-centric in-cabin experiences.