Reminds me of American car rebadging like Camaro/Firebird etc. Change a couple emblems and cosmetic details and call a duck a spade.
Funny how many "seasonal lumps of driver time" went into one chassis. Far more then any other chassis I beleive in modern times. 3 drivers for 2006 pre season, 2 for 2006 race season, then 3 for 2007 on SA, and 2 for the reces. If the 2007 SA version wasn't as good as it is (comparatively) with this much specific chassis tweaking, I would have been very surprised.
Hey Bar55... here's a pet project for ya, if you are up for it.
A photo comparison between the f2002 Ferrari and the c23 Sauber would be neat, as they two cars were virtually identical, and many suspected it was the same car, not just a copy.