Ford kicked off 2015 with a big bang. While many of its most popular models carried over relatively unchanged into the New Year, there were also some big changes going on, too. The Edge SUV entered with a brand new design, boasting a sleeker exterior and interior with more options and room. The Expedition got a brand new engine with more power, and the F-150 featured a brand-new body design. The best-selling Focus got a revamped and more economical engine, while the iconic Mustang entered the year with a brand and sleeker body style.