I am Sixt Platinum, where do I have a better chance of getting upgraded, MIA or at the South Beach location? I'm not flying in, I will be there for Pesach so either way I will have to shlep to the location.
I am returning to MIA (they allow free 1 way rentals within FL), is it far form the terminals? How much time do I need to budget for returning and traveling to the terminal?