American car racer Greg Biffle has an estimated net worth of $50 million in 2013. He currently competes in the NASCAR Sprint Cup Series, driving for Roush Fenway Racing's No. 16 Ford Fusion. In the past, Biffle was named Camping World Truck Series champion, as well as the NASCAR Nationwide Series champion.

Gregory Jack "Greg" Biffle was born on December 23, 1969 in Vancouver, Washington, USA. He was the 1998 Craftsman Truck Series Rookie of the Year, 2000 Craftsman Truck Series Champion, 2001 Busch Series Rookie of the Year, 2002 Busch Series Most Popular Driver, 2002 Busch Series Champion, as well as the Southern 500 Winner in 2005 and 2006. 

As of October 12, 2013, Biffle has spent 12 years in the NASCAR Sprint Cup Series, competing in a total of 397 races. He has also competed in 244 races over his 11-year career at the NASCAR Nationwide Series, and 81 races in his five years racing in the NASCAR Camping World Truck Series.