Miley Cyrus can now go from zero to 60 in less than six seconds — the 19-year-old singer/actress is the proud owner of a brand new white 2012 SL550 Mercedes Benz convertible. Cyrus visited a dealership in California last week and put down US$127,000 up front in cash to buy the sweet ride, leaving her bodyguard to drive her old car home. Cyrus should have no problem getting used to life in the fast lane. She got her first sports car when she was only 16. It was her mother’s old ride and while most kids would be happy with any free car, Cyrus was disappointed that she got an old hand-me-down — even if it was a Porsche. “I didn’t get the one I wanted,” she said at the time.