INDIANAPOLIS — Chevy Malibu is a storied nameplate, dating to 1964, with generations behind it — some icons and others bombs. Two generations ago, Malibu debuted with elegant European styling, two-tone interiors, and rear legroom that was the envy of mainstream mid-sizers. Then, Chevrolet moved Malibu to its shorter mid-size architecture and gave it granny styling that crunched rear legs and left it blending into a sea of sculpted competitors. It wasn’t a bad car — just boring. That changes for 2016.