It’s 2018, and it’s still here. The Chrysler 300 has become a still-living legend. Back for its 14th model cycle, the bruising 4-door reminds us why we still like big rear-drive sedans, why big V-8 power is no mortal sin. It gives us hope that we too can outlive our difficult middle years and become cool once again. For 2018, the 300...