They plan to develop Treasure Island as a smart growth utopia. “We have to be practical as developers, and it’s hard to divorce people from their cars,” acknowledged Kofi Bonner, Lennar Corp. executive vice president. “But we want to make it more difficult to use your car, more inconvenient, more expensive to park … more expensive to leave the island.” Yeah, that’s right. Built-in inconvenience. Brilliant! Hat tip to Amy for the lead on this.