Heart Like a WheelAmazon. com It's often said that this 1974 set, Ronstadt's true commercial breakthrough after a half decade's worth of minor hits, set the formula for the platinum successes to follow: some underrecognized singer songwriter jewels, a couple of semi obscure early rock tunes, always with something for country radio as well as Top 40 to grab hold of. But Heart Like a Wheel does it with a magic Ronstadt and her L. A. session crew would never touch again;