1 Crucial distinguishing element of JDM autos is they don't have a Vehicle Identification Variety (VIN). Alternatively, they've got a body variety (also called a chassis variety) which identifies the auto's model and serial number. JDM, an acronym for Japanese Domestic Industry, refers to automobiles built and marketed in Japan https://elevemotors.com/product/jdm-nissan-skyline-rb26-motor-for-sale-used-rb26-engine/