Some general info on the introduction of the 2003 Legacy GT and the Sportshift Automatic Transmission from: http://www.cars101.com/subaru/legacy/legacy2003.html
"NEW FOR 2003 models a lot has changed for 03
the basic L is upgraded with a Special Edition Package. You get a lot for the money.
The GT wagon is upgraded to what would have been a Limited in 2002 although it isn't called that anymore.
GT automatics get the new SPORTSHIFT clutchless transmission with VDT all wheel drive.
And as always, colors come and go...
new for 03 GT
new Major changes for the GT and L models.
new The base GT wagon is gone, so there is now only one GT wagon and sedan. Both are what last year would have been called 'Limited" models but this year there is no such name.
new GT wagon now comes with all the features on the 02 Limited sedan, including upgrades stereo, leather, side airbags, heated seats and etc.
The sedan remains the same with the folllowing changes applicable to the wagon:
new Transmission. This year all automatic tranmission GTs get
SPORTSHIFT. New for Subaru clutch-less shift feature for more controlled and sportier driving. Select'D' (drive) and the automatic shifts normally, or move the gear selector to the left and control the gears by tapping the lever up or down.
Sportshift gear clearly indicated in upper center of gauges
VTD AWD (variable torque distribution) with 45/55 front/rear power split for a sense of stronger acceleration. The VTD system has been used in the H-6 models since 2001."