Our mates across the pond at PistonHeads say they've got it on good authority that Lamborghini is indeed producing a Superleggera version of the too-hot-to-handle Murcielago.

Eyebrows were raised when spy photogs snapped a Murcielago test mule running test laps around the Nurburgring's venerable Nordschleiff in Germany, sporting a big ol' wing on the back and what looks like carbon fiber body panels. If the reports are correct – and we hope they are – the Murcielago Superleggera will get the same treatment as its little brother, the Gallardo Superleggera, which was unveiled at the Geneva show. That means carbon fiber and composite components will help bring the weight down, while some tweaks to the engine will bring power up, resulting in a delicious increase to the supercar's power-to-weight ratio. It's too early to tell how much extra juice the stripped-down Lambo will get, but it should be a daunting task considering that the engine's output was already augmented for the LP640. Could we be seeing a 700 horsepower figure?

The report suggests an official unveiling of the Murcielago Superleggera in March 2008, but with Lamborghini's pledge to have a new attraction at every major auto show, we wouldn't be surprised – delighted, mind you, but not surprised – to see it take its first bow earlier than that.

[Source: PistonHeads]