Buying a used Ford Flex may be an excellent investment, as this vehicle made its debut in 2008 with the 2009 model. It's a full-sized crossover vehicle with styling based on that of the Ford Fairlaine. The Flex optional all-wheel drive system is capable of towing up to 4,500 lbs, and all versions come with a 3.5L DOHC, 24-valve Duratec V6 engine and a 6-speed automatic transmission. If you want to buy a used Ford Flex, you'll want to select the model that is of most interest to you. Three models of this vehicle are offered. The base version, the Ford Flex SE, comes standard with all the basic power options you might expect, plus Roll Stability Control, independent front and rear suspension, 17-inch painted aluminum wheels, a reverse sensing system, front and back climate control and a capless fueling system. SEL and Limited versions of the Flex offer an optional all-wheel drive system with 3.5L EcoBoost V6 engine and 6-speed SelectShift with paddle activation. Larger wheels come standard with an option to upgrade even further to 20-inch wheels. You can also opt for a power liftgate and Active Park Assist with upgraded models. All models offer seven-passenger seating, adjustable footrests for second row seating and the option to flatten both second and third row seating onto the floor for added interior space. You may choose a mini-fridge for passenger access, and an extensive communications and entertainment system is available to accommodate things such as satellite radio, CD, DVD, navigation systems, music and picture storage and integration of cell phone functionality. Looking for the perfect used Ford Flex may require some research. You can search dealer ratings websites online to find an available used Ford Flex for sale at a reputable dealership. You may also want to check out daily updated used car listings from CarsDirect. You can find extensive information below to help you research the Ford Flex and pinpoint a vehicle currently for sale at a dealership near you.