This year's Supercars campaign will the third and final of Simona De Silvestro's career.
The Swiss driver, who first appeared in Supercars as a wildcard entry for the 2015 and 2016 Bathurst 1000, made history in 2017 as the first full-time female driver in the championship for four decades.
De Silvestro is 20th in the championship after finishing 23rd and 24th the past two years.
The 31-year-old's future has been under a cloud for months after Kelly Racing's announcement that it was downsizing from four cars to just two in 2020.
Earlier this month, the team announced both De Silvestro and Garry Jacobson would not be driving for Kelly Racing next year.