The intention was to avoid being seen as just an extension to the BMW range. When Mercedes introduced its Maybach luxury saloon, it was criticized for producing "the ultimate Mercedes" instead of a totally different car. The car shared many components with and looked like the less expensive S-Class Sedan. BMW learned from this lesson, selling the Phantom through separate dealerships where BMWs are not sold, while the Maybach showroom also sells the most basic of Mercedes models.
The aluminium spaceframe body is built in a BMW plant in Dingolfing, Germany and the V12 engine in Munich. Final assembly, as well as all wood and leather work, for each customer's individual specification is at a purpose built €100M plant at Goodwood, West Sussex, England. The Goodwood plant contains only two robots to paint the spaceframe body; all other work is done by hand, in keeping with the Rolls-Royce tradition.

Instead of a tachometer, the car has a power reserve dial indicating how much of the engine's power is left available to the driver.
The rear doors are rear-hinged, a style commonly referred to as suicide doors, but called 'coach doors' by Rolls-Royce. Because of the rear-seating position in relation to the rear inner-door handles, buttons are mounted on both C-pillars which operate hydraulic motors in order to close the rear doors. An electronic lock prevents the doors from being accidentally opened when moving.
The rear doors feature pop-out umbrellas. Fans are installed in the holding compartment to remove moisture when the umbrellas are stored. Škoda offers a similar feature for the compact executive car Škoda Superb (a plastic box inside the left rear seat's armrest including an umbrella).
The traditional Spirit of Ecstasy ornament has an electronic retraction mechanism to prevent theft and protect pedestrians in the event of an accident. It may also be retracted by the driver at the touch of a button.
The 'RR' logos on each of the wheel hubs are independent bezels in order to always remain upright while the wheel is rotating.
Specifications
It has a 6.75 L, 48-valve, V12 engine that produces 453 hp (338 kW) and 531 ft·lbf (720 N·m) of torque. The engine is derived from BMW's existing V12 powerplant.
It is 1.63 m (63 in) tall, 1.99 m (74.8 in) wide, 5.83 m (228 in) long, and weighs 2485 kg (5478 lb). The body of the car is built on an aluminium space frame and the Phantom can accelerate to 100 km/h (62 mph) in 5.7 s. It has a six-speed automatic transmission and double wishbone suspension.The Phantom features side markers on all vehicles (rear ones are red in the U.S. to comply with federal car lighting rules).
An extended wheelbase Phantom was presented in March 2005 at the Geneva Motor Show, which is 250 mm (9.8 in) longer than the standard Phantom. It is currently referred to as the Phantom Extended Wheelbase. It is currently unknown whether the car will go into production or not









