A direct-injected twin-turbocharged EcoBoost engine is available for the 2010 model. The EcoBoost produces 355 hp (265 kW) and 350 lbft (470 Nm) of torque. In 2013, the Flex gained 10 horsepower to make a total of 365 hp (272 kW), while the torque remained the same. According to Ford, the turbochargers in the engine are designed to last 150,000 miles (240,000 km) or 10 years. AWD is required with the EcoBoost engine option. Towing capacity is 4,500 lb (2,000 kg). The all-wheel drive system is capable of transferring up to 100% of torque to the front or rear axle as needed.

Is it true that does the ford flex come in all wheel drive?
yes