This is a repaint for the A2A Wings of Power III Spitfire for FSX. Portugal took delivery of 18 Spitfire Mk IA's in August 1943. This particular Portuguese Spitfire XZ-A, serial 370 was stationed at No 3 Aerial Base, Tancos. Portugal in 1943.
Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.