Friends mourn Sydney teen who died in shock car crash.

The friends of a Sydney teenager who died last night after crashing her car into the front yard of a house say they are in “complete shock” this morning.

Rhonda Audisho, 17, may have been “skylarking” with two others on board when she rolled her Toyota Corolla in the Wetherill Park at around 8pm yesterday evening, according to Nine News.

The Year 12 student was travelling with two other teenagers, a 14-year-old boy and 17-year-old girl, at the time of the crash.

She died on impact. Her passengers escaped with only minor injuries.

It’s believed they were driving alongside another group of teenagers in a black Mazda 3, but police have said they weren’t racing.

“Early indications are that the incident may not have been street-racing related, however a number of avenues of inquiry are being investigated to determine the circumstances surrounding how the crash occurred,” police said in a statement. No charges have been laid.

A photo of Rhonda with a friend, posted on Facebook. Source: Facebook

Rhonda's devastated friends have posted tributes to her online, offering "heartfelt condolences" to her family.

"Words cannot explain how broken I am right now, waking up to the worst news of your passing last night," a friend, Yvette, wrote on Facebook.

"I saw you driving yesterday and you looked so happy and it made me smile because you grew up to be a very gorgeous good girl, you don't understand how much I'm going to miss you."

Another, Nico, said it proved the "fragility of life and how everyone should be very careful as unexpected things happen in every moment".

Natalia said she was "speechless" over the loss: "Rhonda what can I say I'm speechless you were with us today and now you are gone."