JDM refers to Japanese Domestic Market cars and the style of modifying imported Japanese cars to look like higher performance models sold in Japan. Some key aspects of JDM include: - Modifying cars like Honda Civics and Integras to resemble Japanese domestic models like the Type R with body kits and engine swaps. - Other Japanese brands known for performance parts include Spoon, Mugen, and CTR. - Iconic JDM cars include the Toyota Sprinter Trueno AE86, known for its rear-wheel drive configuration and drifting ability. - Popular modifications are engine swaps, body kits, and adding JDM logos/decals to evoke a imported Japanese car