The Ford Fusion is a mid-size four-door sedan that has been cruising American expressways and urban communities since the 2006 model year. Currently in its second generation, the Fusion remains a popular choice in both regular and Fusion Hybrid trims. With nearly a decade and a half behind it there are a lot of gently used Ford Fusions available in case you're in the market for a reliable car. To assist you in the pre-owned Fusion purchasing experience, we offer this buying guide so you can make an educated decision when picking the best model year for your requirements.