
Its gearbox (aa single-clutch 7-speed semi-automatic) is built by Graziano Trasmissioni. Despite being single-clutch, gear-shifts are accomplished in 50ms.
It has been leaked that production will be limited to 4000 units (4099 Murciélagos have been built). The moulds used to make the carbon-fibre monocoque are expected to last 500 units each and only 8 have been made.... reference Lamborghini Aventador Wikipedia