The 2015 Ford Flex is a distinctive midsize SUV known for its boxy styling and ample interior space. Available in SE, SEL and Limited trims, the Flex offers a standard 3.5-liter V6 engine with 287 horsepower, while a more potent twin-turbocharged 3.5-liter V6 with 365 horsepower is optional for the Limited trim. Both engines are mated to a smooth 6-speed automatic transmission, and all-wheel drive is available. Inside, the Flex includes seating for up to seven passengers, with standard features such as a 4.2-inch display, Ford's Sync voice controls, and a six-speaker sound system. 2015 brought slight changes to the standard equipment, with rear parking sensors and a rearview camera now included in all models. Key safety features comprise of antilock brakes, stability control, front seat side-impact airbags and full-length side curtain-type airbags.