Greg Biffle's peak earning years as a NASCAR Cup Series driver spanned roughly from 2005 to 2014, coinciding with his most competitive period driving for Roush Fenway Racing. While NASCAR driver salaries are typically not publicly disclosed, industry estimates and reports provide insight.
Peak Earning Period
Biffle's earnings peaked during his sustained success with Roush Fenway Racing:
- 2005 Championship Contender: Finished runner-up in the Cup Series standings, significantly boosting his market value.
- Consistent Performance (2005-2013): Made the NASCAR Playoffs (Chase) 6 times and won 15 of his 19 career Cup races during this period.
- Primary Sponsorship Stability: Key sponsors like 3M and Sherwin-Williams provided major funding to his #16 team, directly impacting driver compensation.
Estimated Salary Range
Based on standard contracts for top-performing drivers at competitive teams during that era:

- Annual Base Salary: Industry sources consistently reported Biffle earning between $6 million and $10 million USD annually at his peak.
- Performance Bonuses: Race wins, playoff berths, and high championship finishes likely added substantial bonuses (estimated $500k-$1M+ per win).
- Sponsorship Commitments: A significant portion of base salary was tied to fulfilling sponsor appearance and activation requirements.
Revenue Streams
Biffle's total compensation included:
- Base salary from Roush Fenway Racing.
- Race/performance win bonuses.
- Personal endorsements and licensing deals.
- Percentage of team winnings and NASCAR prize money allocation.
While exact figures remain private, Biffle was firmly established among the top-earning NASCAR drivers during his competitive peak, benefiting from strong team backing, consistent performance, and major sponsorship.