Roxy Jacenko is said to become Sydney's new it-girl with a television show in the pipeline and a prosperous PR business.

According to Confidential, Jacenko recently purchased a black Aston Martin V8 Vantage for $320,000. It was the same car that former it-girl Lara Bingle used to drive before moving to the US.

The Sweaty Betty PR owner has confirmed the purchase to Confidential, saying that it was a gift she gave herself for all the hard work that she put into her firm for the past six years.

"My theory is, if you can't afford to buy it, you don't get it," she said.

Jacenko bought the car after putting away a Porsche 911 and Range Rover. She is set to have her own home built in Woollahra in the near future.

In the meantime, the new reality TV series called The Sweat Box follows Jacenko's day-to-day activities. It is scheduled to air on Channel 7 later this year.