The Subaru Impreza is a compact automobile, manufactured since 1992 by Subaru—the automobile division of Japanese transportation conglomerate, Fuji Heavy Industries (FHI). Subaru introduced the Impreza as a replacement for the Leone, with the Leone's EA series engines replaced by the newer EJ series versions.Now in its fourth generation, Subaru has offered four-door sedan and five-door hatchback body variants since 1992; the firm also offered a coupe from 1995 for the first generation only. Mainstream versions have received naturally aspirated "boxer" flat-four engines ranging from 1.5- to 2.5-liters, with the performance-oriented Impreza WRX and WRX STI models uprated with the addition of turbochargers. Since the third generation series, some markets have adopted the abbreviated Subaru WRX name for these high-performance variants. The first three generations of Impreza in North America were also available with an off-road appearance package titled Subaru Outback Sport. For the fourth generation, this appearance package became known as the Subaru XV, and is sold internationally.Subaru has offered both front- and all-wheel drive versions of the Impreza. Since the late-1990s, some markets have restricted sales to the all-wheel drive model—therefore granting the Impreza a unique selling proposition in the global compact class characterized by front-wheel drive. However, Japanese models remain available in either configuration.