Porsche 911 GT3 RS is powered by a 3.6L engine which can generate 415 bhp @ 7600rpm, while Lamborghini Gallardo Superleggera is powered by V10 that generates an incredible 530hp.

Which one is faster? Watch the video after the jump.

Lamborghini unveiled the Gallardo Superleggera last month and here is a testdrive. The Lamborghini Gallardo Superleggera is powered by a V10 engine generating 530hp boosting the Gallardo Superleggera from 0-60mph in just 3.8-seconds.
Although Lamborghinis are decidedly built for the road, the results of the Gallardo’s high-perfomance diet can best be seen (and heard) on the race track. This video comes courtesy of the Swedish Auto Motor & Sport, who took the new Superleggera out for a spin at the Phoenix International Raceway in Arizona.
Video after the break.

Lamborghini Gallardo Superleggera has been revealed. The Gallardo Superleggera can go from 0 to 100km/h in only 3.8 seconds. More pics after the jump.
Sant’Agata Bolognese, Italy - With the Gallardo Superleggera, Automobili Lamborghini presents an uncompromisingly high-performance sports car. Thanks to increased power (an additional 10 hp) and a 100 kg reduction in weight (USA 70 kg), the new range-leading Gallardo Superleggera is even more dynamic than the already very sporty Gallardo. The weight/power ratio of the Lamborghini Gallardo Superleggera is only 2.5 kg/hp, which puts it unquestionably at the top.

The Superleggera also has the fastest acceleration in its class. It needs only 3.8 seconds to go from 0 to 100 km/h (0-62 mph); 0.2 seconds less than the basic model, and boasting speed and grit under other driving conditions.
The Lamborghini Gallardo Superleggera is an extremely high-performance car: it includes a standard robotized mechanical ‘e-gear’ gearbox that guarantees shifting without removing hands from the steering wheel. The new Gallardo Superleggera can be ordered through the dealer network starting March 2007: production volumes will be restricted to lower numbers than the standard Gallardo.