A WOMAN has left motorists gobsmacked after dancing behind the wheel of her car topless on a busy dual carriageway.

The unknown driver, who filmed herself while travelling in Buenos Aires, Argentina, pulled her top around her hips exposing her boobs as she gesticulated along the music with her hands trailing out of the window.

3 This mystery woman stripped to the waist and filmed herself driving along a busy dual carriageway in the Argentine capital city of Buenos Aires Credit: CEN

The carefree woman was dancing along to "Loquita", which means crazy, by a Uruguayan group called Marama.

It is alleged that the film was made as the mystery woman was on her way home following an all-night party.

3 She was listening to Marama’s hit song "Loquita" which means "Crazy' Credit: CEN

3 The topless woman in sunglasses wore her seatbelt Credit: CEN

The footage reportedly went viral after it was shared on WhatsApp.

Sporting a pair of sunglasses, she doesn't appear to be bothered by the attention of other motorists driving in the opposite direction.

In the clip, she can be seen showing off her assets while readjusting her seatbelt.

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Earlier this year, a shocking video emerged of a passenger leaning out of the window to fiddle with a car's petrol cap.

The incident happened on the London-bound carriageway of the A2 near Bluewater, Kent.

And to make matters worse, the car is travelling in the fast lane at the time of the “dangerous stunt”.

He said: “It was unbelievable!

Driver Geoff Watkins, 34, of Medway, Kent, was on the way to visit a relative when he saw the drama unfold.

He said: “It was unbelievable!

“The driver must’ve forgotten to shut the petrol flap after filling up.

“I suspect they were alerted by it flapping in the wind.

“Some other drivers were just laughing at the passenger’s antics.

“But it was an incredibly dangerous stunt to pull.”

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