This speech centers on VI-grade full-chain XIL technology and FSS full-spectrum simulator. Aiming at industrial pain points that vehicle dynamics and NVH tests are conducted separately with simultaneous reproduction of complex working conditions hardly realized in traditional vehicle development, it introduces an integrated 0Hz~20kHz full-spectrum simulation solution. The platform builds closed-loop MIL/SIL/HIL/DIL workflows, supporting localized R&D tasks such as extreme vehicle dynamics simulation, vehicle lap performance and NVH.