Subaru Legacy model is produced from 1989 to the present. It is sometimes also known as the Subaru Liberty (in Australia), Subaru B4 Subaru Legacy B4 Subaru Legacy Touring Wagon. It is produced as a four-door sedan and five-door station wagon. Interestingly, since 1989 has produced over 3.6 million Legacy. Legacy version is produced in five-door station wagon and four-door sedan with front-wheel drive or four-wheel drive.

In 1990 the first version offered by the US-spec GT turbomotorem with body sedan or wagon. In 1996, Japan introduced a modified version of another Legacy GT-B.

Legacy model was announced in 1990 by RL Polk & Company as the best-selling vehicle with all-wheel drive in the USA. According to the car guide AutoGuide of June 1990, the Legacy sedan and wagon cheapest offering all-wheel drive and ABS system. Association of Canadian automotive journalists selected the best new Legacy sedan 1990.

Subaru World Rally Team put in a race Legacy World Rally Championship and British Rally Championship with the help of Prodrive in 1990. This revised model racing then passed various world championships and races with many famous pilots such as Markku Alen, Ari Vatanen and Colin McRae.

First-generation Legacy was produced between 1989 - 1994. Legacy model for the successor model Leone / Loyal.

The second generation Legacy was produced from 1993 - 1999. The appearance of the rear lights was derived from the SVX model taillights. In 1996, Subaru decided to include AWD standard equipment on all vehicles to market in North America, however, be offered as well as models with front-wheel drive. Second-generation Legacy was sold in Israel under the name B4.

Third-generation Legacy was produced between 1998 - 2003. Subaru Legacy is the only car in its class, which has in its standard on all-wheel drive. Legacy model can be equipped with four-speed automatic transmission - 4EAT, which has the option to disable the use of first gear to the vehicle with better rozjíždělo degraded in terrain, ice or snow - HOLD. Further arrangements for sporty driving, where one of the other transmission gear later (and at higher engine speeds) and vice versa very happy trip - POWER function. Both modes are selected rocker switch next to the gear selector and are indicated on the dashboard - a green sign and a yellow sign POWER HOLD symbol flakes. In Hold mode, the vehicle then starts the second gear, gearbox distributes power in the ratio 50:50 or 45:55 (depending on the system) between the front and rear axle. The next time the vehicle is starting again starts in second gear, until gradually Leaders not lining up to fourth gear. Subsequently turns off the automatic system and starting again uses the first gear.

The fourth-generation Legacy is made from 2003 to 2009. This model was in 2003 - 2004 elected the vehicle in Japan. In May 2008, a special Japanese Legacy model features a new safety system called EyeSight. The system consists of twin cameras positioned on each side of the mirror, which serves as a stereoscopic view to estimate distance and informs the driver in an emergency vehicle. The fourth-generation Legacy is first started to produce new diesel boxer engine.