After weeks of thumbnail-photo teases, the covers come off the Lamborghini Sesto Elemento, a new concept car on display tonight with other new vehicles from the Volkswagen Group as a part of the 2010 Paris auto show.

The name derives from Italian for "sixth element" on the periodic table, carbon--and the Sesto Elemento is described as "a technology demonstrator" constructed for the show to give an idea how the future of Lamborghini will include carbon-fiber construction techniques.

Thanks to its ultra-light construction, the Sesto Elemento weighs in at just 999kg. Power is provided by the Gallardo Superleggera's 425kW V10 engine, sent to all four wheels via Lamborghini's permanent all-wheel-drive system. Torque is listed as 540Nm at 6400rpm.

Combine the low weight with the V-10’s 570 hp at 8000 rpm—torque stands at 398 lb-ft at 6500 rpm—and performance should be explosive; Lamborghini says the car is capable of reaching 62 mph in 2.5 seconds. Top speed—only mentioned, says Lambo, "in the interests of completeness,” as top speed has been downgraded to the fourth-highest priority for its products—is said to be “well over 185 mph.” We suspect this modesty belies a terminal velocity north of 200 mph.

The use of carbon fiber extends beyond exterior panels: The passenger-holding monocoque, front subframe, crumple zones, and wheels are made of the material as well. The rear subframe, by contrast, is made of aluminum. Most anything else has simply been omitted. There is no dashtop—the underlying structure itself is laid bare—and the seat cushions are glued to the monocoque. One element we wish had been included is a clutch pedal. The Sesto Elemento is equipped with the e-gear six-speed automated manual transmission; power runs through it to Lambo’s all-wheel-drive system.

The new limited edition Lamborghini Murcielago LP640 Roadster Versace, whole car's surface adopt a soft white paint, and have a Versace Greek Logo at the lower part of the doors. Murcielago LP640 Roadster Versace equip V12 engine for the first time.The front and rear bumpers have been reshaped to channel air more efficiently, and the new exhaust has been shaped into the rear diffuser to minimize aerodynamic lift. A black-and-white leather seats, full use of the NAPPA soft leather, hand-written on the Versace Greek text of the logo, furthermore ,doors and centre console, and other locations are further escalation of the decoration.