Subaru is the automobile manufacturing division of Japanese transportation conglomerate Subaru Corporation (formerly known as Fuji Heavy Industries), the twenty-second largest automaker by production worldwide in 2012. Subaru cars are known for their use of a boxer engine layout in most vehicles above 1500 cc. The Symmetrical All Wheel Drive drive-train layout was introduced in 1972. Both became standard equipment for mid-size and smaller cars in most markets by 1996.