How do you use virtual vehicle development to reduce physical prototype testing?

Virtual vehicle development (VVD) integrates multi-disciplinary simulation models for early-stage validation. The approach includes: Building validated component models (tires, bushings, dampers), assembling full-vehicle models with accurate mass properties and CG, running virtual equivalent of physical tests (ISO lane change, constant radius cornering), using hardware-in-loop for control system development, correlating virtual and physical test results, and progressively reducing physical prototype builds. Key enablers are model accuracy, correlation processes, and computing infrastructure. Benefits include 30-50% reduction in prototype builds, earlier issue identification, and more design iterations within schedule.