Bentley worked as a driving instructor at his Performance Advanced Driving School and a columnist for racing clubs in the 1980s. Bentley currently owns a consulting business, Bentley Performance Systems, which focuses on improving the performance of individuals, teams and organizations through coaching, workshops and the development of custom-designed programs. In 1998, Bentley published the first in a series of racing technique and strategy books called
Speed Secrets. To date, he has nine books published under the Speed Secrets banner, including
Inner Speed Secrets with Ronn Langford and
The Complete Driver with Bruce Cleland. He also co-wrote with
Bob Bondurant on
Race Kart Driving. In 2017, Bentley released a new title,
Performance Pilot (written with professional aviator Phil Wilkes) detailing aviation-specific procedures, techniques, and strategies to help pilots improve their flying performance. Bentley currently lives with his wife and daughter in
Issaquah, Washington, US. ==American open–wheel racing results==