Here is the link for the 2011 entry list for the 500.
http://www.indianapolismotorspeedway.com:8080/var/assets/IMS_EntryL...
Dragon Racing ( Owned by the Captain's son, Jay Penske) has a car and a backup entered with a driver TBA. Panther Racing, who came in second last year at Indy with Dan Wheldon has a car and a backup entered with a driver TBA . It might be nothing, but then again it might be something. A number of teams bring extra cars and wait for the best driver with the most sponsor dollars to fill them. These look like the best options available at this time. It would be tremendous exposure for Robby and Speed Energy at the 100th anniversary Indy 500!