JDM (Japanese Domestic Market) refers to vehicles and parts originally produced for sale in Japan, forming one of the most influential global automotive subcultures. Known for precision engineering, reliability, and tunability, JDM culture celebrates iconic models, spirited driving, motorsport heritage, and the distinct styling trends that emerged from Japan. Enthusiasts value everything from classic imports and turbocharged street cars to period-correct builds and rare factory-spec components—making JDM a cornerstone of modern car culture.