A Differential research study tracking 2,651 Thai vehicle owners over 2025-2027 reveals Japanese brands dominate loyalty (69% repurchase intent) vs. American (60%) and Chinese brands (46%). Thai consumers increasingly accept alternative energy vehicles, particularly EVs, but prioritize price and trade-in value. Chinese brands face higher uncertainty (44%) and brand-switching rates (11%). The data shows consumer behavior shifting from necessity-driven to lifestyle-driven purchase decisions, with concerns about powertrain systems rising from 17% to 39%.