The fifth-generation Corvette program produced several key concept models that guided the development of the C5. Most notable were the CERV IV and IVb test mules, which evaluated the hydroformed chassis, rear-mounted transaxle, and torque tube years before production. GM designers, including John Cafaro and Tom Peters, also built full-scale styling bucks to explore the Corvette’s future look. Together, these concepts validated the C5’s engineering breakthroughs while ensuring its design balanced