In the face of Duff’s determination, he agreed to have the car prepared at the factory and let his test driver, Frank Clement, partner Duff. The Duff/Clement Bentley was one of the fastest cars, Duff setting the fastest lap at 9 mins 39 sec for the 10.726 mile lap. Rough track conditions took their toll as a flying stone holed the fuel tank, forcing Duff to run back to the pits.
In the presence of Duff’s determination, he consented to have the car prepared at the factory and allowed his test driver, Frank Clement, to partner with Duff. The Duff/Clement Bentley was one of the fastest cars; Duff achieved the fastest lap time in 9 mins 39 sec for a 10.726 mile circuit. Rough track conditions adversely affected the vehicle as a flying stone caused damage to the fuel tank, necessitating Duff’s return to the pits.