American Airlines AAdvantage. Earning miles with Car Rental

Car rental	You'll earn	Current offers
Alamo	50 Miles per day
Avis	50 Miles per day	Now through December 31, 2011, you can earn 2000 AAdvantage bonus miles on rentals of 3 or more days with Avis.
Budget Car and Truck Rental	50 Miles per day
Dollar Rent a Car	50 Miles per day
Europcar	60 Miles per day
Hertz Car Rental	1 Miles per spend 1 US$	Earn double miles when you rent any vehicle for one or more days at a participating location in the U.S., Puerto Rico, and Canada.
National Car Rental	50 Miles per day
Thrifty Car Rental	50 Miles per day