JDM stands for japanese domestic market and refers to Japan's home market for vehicles. For the importer, these terms refer to vehicles and parts designed to conform to Japanese regulations and to suit Japanese buyers. The term is abbreviated as JDM. This style of cars have some all time favorites, as the nissan skyline, toyota supra, honda civic with a laptop guy, the green car from fast and furious tokyo drift that really look like a supra and Han's RX-7 not LS swapped.