Excellence is a magazine dedicated to Porsche cars, which is published 9-times per year. Since their first issue in January 1987, they have published several articles for the 924, 944 and 968. I've compiled a list of those articles and organized them into the ad-hoc categories below. The list is up to date as of issue #153 (February 2007).
924 (and 931) – most recent article, November 2005
944 (and 951) – most recent article, November 1997
968 – most recent article, February 2007
Modified Street Cars – most recent article, June 2005
Racing & Racecars – most recent article, August 2005
Body – most recent article, June 2005
Brakes – most recent article, February 2006
Drivetrain – most recent article, November 2006
Electrical – most recent article, November 2003
Engine – most recent article, May 2006
HVAC – most recent article, September 2006
Interior – most recent article, December 2005
Steering – most recent article, February 2002
Suspension – most recent article, August 2006
Wheels – most recent article, June 1995
Buyers' Guides – most recent article, April 2006
General Maintenance – most recent article, February 1997
Miscellaneous – most recent article, September 2002
Jim Pasha's Tech Forum – most recent (relevant) article, February 2007