Gregory Jack "Greg" Biffle (born December 23, 1969) is an American professional stock car racing driver. He currently drives the No. 16 Ford Fusion for Roush Fenway Racing in the NASCAR Sprint Cup Series. After racing in the NASCAR Winter Heat Series in the mid-90s, he was recommended to Jack Roush by former announcer Benny Parsons. He has won championships in both the Nationwide Series and the Camping World Truck Series.