Ferrari executives may have thought that their 620-horsepower 599 GTB would be the shining, exotic-car jewel of the 2006 Geneva Motor Show, but they obviously hadn’t consulted with the folks at Lamborghini. The Murcielago LP640 houses a 6.5-liter V12 good for 640 horsepower and a 0-62 mph sprint in about 3.5 seconds.