I've read a lot of discussion on changing to a gt3 from the c2s and wonder how many gt3 owners/drivers (current and past) have race seats such as sport buckets, or use some other after market set up? How many have opted for seats with more powered adjustment? Since the gt3 is lower by about 3/4" the PASM settings have to be stiffer then a c2s w/sports susp. as the springs are tighter ?

Tally of GT3's sold, 2010 data doesn't seem to be available yet; 1,562 units of 27,656 or 5% of 911's. US sales data isn't broken out:

ALL 911 2009 6,839 2008 8,324 2007 12,493
911 gt3 2009 360 2008 33 2007 756
* 911 gt3 rs 2009 0 2008 47 2007 366

 

Roughly 644 .2 (2010/2011) GT3s and 523 .2 RSs were sold in the US to date. I don't believe there are many new cars available. The majority of GT3s have either the standard sport seat or A.S.S. Many of the A.S.S options were freebies from Porsche; few GT3s have the buckets. (FTR buckets obviously came standard in the RS. Very few RSs have alternate OEM seats.) I have the standard seats in my .2 3.

MJones from Rennlist has provided most of this info on Rennlist.