Lamborghini's displaying one of the 2012 Geneva motor show's undoubted stars in the shape of the Aventador J. A very special (and completely one-off) edition of the existing Aventador LP700-4 supercar, it uses the same 690bhp V12 engine, seven-speed ISR gearbox and four-wheel-drive system, but bins the roof and windows (and around 200kg) and ushers in some amazing aerodynamic and carbonfibre technology.

With everyone clamouring to have a look, it's hard to get anywhere near the Aventador J on Lamborghini's show stand. Just as the show doors closed on press day though, we managed to get up close and personal and photograph some of the car's jaw-dropping details, including the unconventional rear spoiler and finely crafted front winglets.

Click the pictures below for a closer look, and click here for the full Aventador J story

Check out our A-to-Z list of stories from the 2012 Geneva Show

See the Ferrari F12 Berlinetta up close and personal, too