[s-cars] Rear brake calipers

[Harold McComas]

Recently had my parking brake stick in 20F weather and did some research on 
it, aka sticking rear caliper, cables and such. Got me thinking, does 
anybody know of an improved/newer rear caliper that would be less seizure 
prone?  I am thinking along the lines like  the VW Mk2 Golf guys using the 
Mk4 caliper: 
http://www.rennenparts.com/index.php?main_page=product_info&products_id=168

Did a very brief search and it seems like the only other Audi that uses 10.6 
rear rotors is the 2000-2003? A8L. Anybody that is Audi parts savy care to 
investigate further ( if worthwile)? The A8 caliper is more expensive but if 
it doesn't seize might be worth it.

Harold