Murcielago LP 640 Roadster

The Murciélago Roadster was introduced in 2004. Primarily designed to be an open top car, it employed a manually attached soft roof as cover from adverse weather, but a warning on the windshield header advises the driver not to exceed 100 mph (160 km/h) with the top in place. The designer used the B-2 stealth bomber, the Wally 118 WallyPower yacht, and architect Santiago Calatrava's Ciutat de les Arts i les Ciències in Valencia, Spain as his inspiration for the roadster's revised rear pillars and engine cover.[3]

In March 2006, Lamborghini unveiled a new version of its halo car at the Geneva Motor Show: the Murciélago LP 640. The new title incorporated the car's name, along with an alphanumeric designation which indicated the engine's orientation (Longitudinale Posteriore), along with the newly updated power output. With displacement now increased to 6.5 liters, the new car made 640 PS (471 kW; 631 hp) at 8000 rpm. The Murciélago's exterior received a minor facelift. Front and rear fascias were revised, and side air intakes were now asymmetrical with the left side feeding an oil cooler. A new single outlet exhaust system incorporated into the rear diffuser, modified suspension tuning, revised programming and upgraded clutch for the 6-speed "e-Gear" automated sequential transmission with launch control rounded out the performance modifications. Interior seating was also re-shaped to provide greater headroom, and a new stereo system formed part of the updated dashboard. In the U.S. MSRP was set at $318,800.[citation needed] Optional equipment included Carbon fibre-reinforced Silicon Carbide (C/SiC) ceramic composite brakes, chrome paddle shifters and a glass engine cover. The 2008 car's estimated fuel economy for the 6-speed manual is 8 miles per U.S. gallon (29 L/100 km; 9.6 mpg-imp) city and 13 miles per U.S. gallon (18 L/100 km; 16 mpg-imp) freeway, making it the least efficient car in 2008 for city and highway driving, according to the EPA.[7]