Originally Posted by LincolnPark

I just received the hard copy "Official" MileagePlus Club Card Membership Guide along with my welcome package. This it what it says:

Avis President's Club

You expect the best transportation available,even when you're on the ground. As a MileagePlus Club Card member, you are invited to join the Avis President's Club.

This select program includes:
Up to a two-car upgrade-complimentary two car-class upgrade when available
Guaranteed car - even without a reservation
Savings on international rentals
Access to a member-only reservation

Visit www.avis.com/usaclubcard to join

Hope this helps!