Not much difference. Suspension is obviously different, though most LGT stuff swaps. Brakes are different, again LGT stuff swaps. Interior is a little different (the early cars said OUTBACK on the cluster). The drivetrain is slightly different, different gear ratios, different driveshaft. Obviously trim differences, bumpers, grille, body cladding, etc.
For all intents, however, it's a lifted LGT wagon. Most mods swap, though not all.