Complex sentence: Gregory Jack "Greg" Biffle (born December 23,1969) is a NASCAR driver who drives the No.16 Ford Fusion for Roush Fenway Racing in the Sprint Cup Series.
Split into simpler sentences: Gregory Jack "Greg" Biffle (born December 23,1969) is a NASCAR driver. He currently drives the No.16 Ford Fusion for Roush Fenway Racing in the NASCAR Sprint Cup Series.