The Murcielago's body is carbon fiber except for steel roof and door panels. It is available in a coupe or convertible. The coupe has a 6.5-liter V-12 engine that produces 640 hp and has a six-speed manual transmission or optional paddle-shift sequential-manual. The convertible retains last year's 6.2-liter 580-hp V12. Both versions have a permanent all-wheel-drive system with electronic traction control.For 2007, the Lamborghini Murcielago gets minor exterior changes and a power increase.