The disappointment would intensify in May, however, when Jones failed to qualify for the 2007 Indianapolis 500. His No. 40 car had been painted to resemble the one his father used in the 1967 Indianapolis 500 forty years prior; that car was powered by a turbine gas engine and used a four-wheel drive system. Both technologies had since been outlawed at the Speedway and were not featured on the 2007 entry for Jones.