Like its hardtop sibling, Lambo's new topless terror carries the LP 700-4 designation, pointing to its 700hp (525kW) V12 engine and all-paw layout.
As expected, the Roadster features a manually removable two-piece roof that can be stored in the front luggage space. Made from carbon fibre, each panel weighs just 6kg.
The Aventador Roadster is further set apart from its coupe stablemate by the new engine hood, featuring a centre "spinal column" and two hexagonal windows, cooling the engine and draining rain away.
The rear windshield is powered and can be adjusted to control the flow of air and engine sound into the cockpit, while a wind deflector on the front windshield helps maintain a calm environment inside.
The top part of the car - the two roof sections an the rear window area - are painted in a gloss black, creating a two-tone effect across the body.
Along with the carbon fibre roof panels, the Roadster boasts extra weight loss through the addition of new 'Dione' 20/21-inch wheels, weighing 10kg less than the standard wheels fitted to the coupe.
Together, the weight-reduction efforts and the big V12 engine give the Aventador Roadster a 0-100km/h time of 3.0 seconds - only slightly shy of the coupe's 2.9-second claimed sprint.
Watch for details on Australian availability as they come to hand.