king for discount) Rail: Amtrak: 15% off (62+) Car Rental: Alamo Car Rental: up to 25% off for AARP members Avis: up to 25% off for AARP members Budget Rental Cars: 40%off: up to 50% off for AARP members ( 50+) Dollar Rent-A-Car: 10% off ( 50+) Enterprise Rent-A-Car: 5% off for AARP members Hertz: up to 25% o