These photographs of a Lamborghini Aventador LP750-4 Superveloce roadster prototype were taken by a fan of our spy photography agency.
This prototype was photographed right outside Lamborghini's Sant'Agata Bolognese factory in Italy. Unlike earlier development vehicles, it has almost no disguise tape applied to it and, unusually, is proudly wearing its Lamborghini badges without any cover up.
Compared to the Aventador LP750-4 Superveloce coupe that was unveiled at this year's Geneva motor show, the roadster features modifications to the A- and C-pillars, as well as the rear window, to accommodate a removable carbonfibre roof.
Reports indicate that the roadster will be around 50 kilograms heavier than its coupe sibling.
The Aventador SV coupe has a more powerful 552kW version of the company's 6.5-litre V12. To help make best of use of its 37 extra kilowatts, the coupe also features extra servings of carbonfibre, as well as a stripped down interior without carpets, an infotainment system or noise insulation.
A seven-speed automated manual transmission and standard all-wheel drive mean that the SV coupe can complete the 0-100km/h dash in 2.8 seconds and record a top speed of over 350km/h.
The German-owned purveyor of supercars is planning to sell just 500 copies of the Aventador SV roadster. The 600 SV coupes that Lamborghini has committed to building already have buyers' names against them.
Lamborghini Australia has informed Car Advice that the Aventador SV roadster will carry a base price of $916,150 before dealer and statutory charges. The order book is now open and local deliveries are slated to begin some time in 2016.