Lamborghini unveiled the Murcielago in 2002 as a successor for the Diablo. The Roadster version was unveiled in 2004 as a 2005 model year. The coupé’s base price is US$ 289,000, which is US$ 90,000 more than its smaller sibling, the Lamborghini Gallardo.
At its launch, the Murcielago was powered by a 6.2 liter V12 engine mated with a six-speed manual transmission. It features a rear spoiler that can be raised to an angle of 70 degrees, side mirrors that fold in to improve aerodynamics, and side scoops that automatically open to the needed size to let in just the right amount of air needed to cool its engine.
In 2006 the 6.2 liter engine was replaced with a 6.5 liters one, and the name was changes in Murcielago LP640.
The Lamborghini Murcielago’s engine - which complies with the strictest emission standards in the world, including those of the United States, Japan and Europe - is a 12-cylinder V12 with a displacement of 6192 cc, made entirely from aluminium alloy and designed for unleaded fuel, producing 580 HP at 7500 rpm and 48- lbs-ft torque at 5400 rpm. Torque delivery is optimised across the entire engine operating band (even at engine speeds relatively low for a sports car) thanks to the adoption of a variable-geometry intake system (VIS), variable valve timing (VVT) on both inlet and exhaust camshafts, and the "drive-by-wire" electronic throttle control, which makes for reduced emissions, improved idle speed control and improved driveability. Particularly noteworthy is the fact that at just 2000 rpm, the Murcielago produces more torque than maximum value attained by the majority of Granturismo cars in today’s market.
Lamborghini Murcielago LP640
For the Murcielago LP640, LP640 means Longitudinale Posteriore 640 hp, and it refers to the position and power of the V12 engine, that gains 60 hp on the previous Murcielago (from 580 to 640 hp at 8,000 rpm, while the torque grows from 479 lbs-ft to 469 lbs-ft at 6,000 rpm).
The engine of the new Murcielago LP640 has undergone outstanding and radical modification. The increased bore and longer stroke have boosted the displacement of the classic 60° V-engine from 6.2 liters to 6.5 liters. Thus the already extraordinary 580 bhp engine power has now been elevated to an impressive peak of 640 bhp at 8,000 rpm. The 12-cylinder engine reaches a maximum torque of 487 lb-ft at 6,000 rpm.