Marie's Postcards: Tropical Race Track Park, Coral Gables, Fl

Marie's Postcard Collection.  This  is the "Clubhose Entrance", Tropical Park, Coral Gables, Florid.  It goes on to say on the other side of the card: "The Friendly race Track."

Friendly Race Track?  What does that mean?  They won't break your legs the first time you owe them money?