Here are the 2 best codes that anyone can use on the market.
Avis - C031... AWD
Hertz - 1757580 CDP
Edit:
WARNING: DO NOT use Avis C03___9 AWD discount code anymore. I got a
very reliable confirmation from an inside guy that this code is black
listed now. Effective immedately, all benfits associated with code are
removed(including free LDW insurance), anyone use this code will pay
maxiumum rack rate regardless of reservation or website showing rate as
well as company ID must be produced. A warning flag has been raised on
this AWD and most likely you will be questioned about where you got the
code. All in all, this code is nothing but trouble from now on.
I recommend people to use Hertz CDP discount. It's the best
discount and choice now.
Oh well, it was great while it lasted.