The red tester is wearing black panels that are likely made of carbon fiber and/or plastic, just like certain body panels on the Gallardo Superleggera. According to The Car Connection, the doors, engine hood, central tunnel and that large rear wing will likely be comprised of the carbon fiber stuff, and some glass may also be swapped out for lighter clear plastic panels. One would assume that the Murcielago's rapid weight loss would also be accompanied by a corresponding bump in power, as was the case with the Gallardo Superleggera. The current Merc's 640 horsepower is a substantial number already, so who knows how much higher Lamborghini can push it. Hopefully the Murcielago Superleggera isn't merely vaporware and will make a grand entrance when the auto show season begins again this fall in Europe.
[Source: The Car Connection]