Just saw this promotion via this thread
Avis is rewarding AA members with a savings of up to 25% and 5,000 AA Bonus Miles. Book a weekly rental between May 1, 2011 through August 15, 2011 for a rental taking place August 15, 2011 through December 15, 2011. AWD # K817100 and Coupon # MUAA042
Offer valid for US and Canada airport location only.
You can use any AWD you want