[6] In 2015, Gracie switched to the Supercars Dunlop Series, in which she drove for Paul Morris Motorsport, and was the first full-time female competitor in 14 years.

[9][10] On 19 August 2015, it was announced that Gracie would partner Simona de Silvestro in a Ford FG X Falcon fielded by Prodrive Racing Australia in the Bathurst 1000 for V8 Supercars.

[12][13] On lap 15 of the race, the Falcon, running under the "Harvey Norman Supergirls" banner,[14] was severely damaged in an oil slick-induced impact by Gracie with the wall at Forrest's Elbow.

After undergoing extensive repairs, it was sent back out, with de Silvestro at the wheel, to finish 21st, 40 laps down on the winning pair of Craig Lowndes and Steven Richards.

After a string of poor results with only one top-10 finish in 17 races and a lack of available funds, she was replaced with Kumho Series driver Jordan Boys.