Thanks to a new carbonfibre hardtop and extra body reinforcement, the SV roadster has a dry weight of 1,575kg, up 50 kilograms on the Aventador Superveloce coupe. Lamborghini claims that the new two-piece hardtop weighs just 12kg, and can be removed and affixed using a new quick-release system.
Powering the new open-air SV variant is the same upgraded 6.5-litre V12 engine that's used in the SV coupe. A new exhaust and various other changes have upped power by 37 kilowatts to 552kW, while torque is now rated at 690Nm.
All that sound and fury is harnessesed by an all-wheel drive system and a seven-speed automated manual transmission.
According to Lamborghini, the Aventador SV roadster can race from 0-100km/h in 2.9 seconds, hit 200km/h within 8.8 seconds and has a top speed in excess of 350km/h. This means that the roadster is 0.1 seconds slower to 100km/h and 0.2 seconds tardier to 200km/h.
The SV roadster features Pirelli P-Zero Corsa rubber at each corner, with 255/30 tyres up front and 355/25 versions at the rear. The alloy wheels have a 20-inch diameter at the front and are 21-inch units out the rear.
Just 500 Aventador SV roadsters will be produced to complement the 600 SV coupes, with the latter already sold out.
In Australia, the Aventador LP750-4 Superveloce roadster will retail for $916,150 before dealer and statutory charges. The company is now taking orders for the car, but local deliveries won't begin until 2016.