Picking powertrains used to be simple: straight-six or V-8? But consider the all-new 2013 Ford Fusion mid-size sedan that reaches dealers this fall: It comes with a base 2.5-liter four-cylinder engine, or you can pick from a choice of two different smaller, turbocharged EcoBoost fours, in 1.6- and 2.0-liter sizes. Then there's the 2013 Fusion...





More...