By Chris Kirkham LOS ANGELES (Reuters) -For a businessman who perpetually struggles with broken promises, Elon Musk gave himself quite a to-do list Thursday night at Tesla's long-awaited Hollywood unveiling of its driverless robotaxis.

Tesla CEO Elon Musk unveiled on Thursday his vision of a “a fun, exciting future,” an “age of abundance” full of his company’s self-driving cars without steering wheels, parking lots turned into parks and robots that will walk among the population – that he once again promised would be available within a few years.