Why are some of the Impreza GG's listed as Impreza Wagons? Wagon should not be in the name at all. I'm not sure who accepted the edit, but it is not correct.
GG's being the 2nd generation, 2000-2007
2001 Brochure, per Subaru page 9, "Impreza L Sport Wagon":
http://www.auto-brochures.com/makes/Subaru/Impreza/Subaru_US%20Impreza_2001.pdf
2002 Brochure, per Subaru page 11, "Impreza 2.5 TS Sport Wagon":
http://www.auto-brochures.com/makes/Subaru/Impreza/Subaru_US%20Impreza_2002.pdf
2004 Brochure, per Subaru page 6, "2.5 TS Wagon":
http://www.auto-brochures.com/makes/Subaru/Impreza/Subaru_US%20Impreza_2004.pdf
2005 Brochure, per Subaru page 10, "Impreza 2.5 RS Wagon":
http://www.auto-brochures.com/makes/Subaru/Impreza/Subaru_US%20Impreza_2005.pdf
2006 Brochure, page 5, mentions "Sport Wagon" several times:
http://www.auto-brochures.com/makes/Subaru/Impreza/Subaru_US%20Impreza_2006.pdf
2007 Brochure, page 3, mentions "Sport Wagon" several times:
http://www.auto-brochures.com/makes/Subaru/Impreza/Subaru_US%20Impreza_2007.pdf
2008 Brochure for GH models, calls the model 5-door, no "Wagon":
http://www.auto-brochures.com/makes/Subaru/Impreza/Subaru_US%20Impreza_2008.pdf
So it would appear that the use of "Wagon" is correct. We probably could change the North American models to "Sport Wagon" rather than plain "Wagon"