The Rolls-Royce 100 EX and the 101 EX, with 'EX' standing for experimental models, are two related concept cars developed by Rolls-Royce Motor Cars and first shown at the Geneva International Auto Show in 2004 and 2006 respectively.

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Rolls-Royce 101EX
Overview
Manufacturer	Rolls-Royce Motor Cars
Production	100EX: 2004 (concept car) 101EX: 2006 (concept car)
Body and chassis
Class	Luxury car
Body style	100EX: 2-door coupé 101EX: 2-door cabriolet
Layout	Front-engine, rear-wheel-drive
Doors	Suicide doors
Powertrain
Engine	100EX: 9.0 L V16
Transmission	6-speed automatic
Dimensions
Length	100EX: 5,669 mm (223.2 in)
Width	100EX: 1,990 mm (78.3 in)
Height	100EX: 1,561 mm (61.5 in)

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• 9.0 litre V16 engine
• 6-speed automatic transmission
• Dimensions:
  • Height 1,561 mm (61.5 in)
  • Width 1,990 mm (78.3 in)
  • Length 5,669 mm (223.2 in)

The 100 EX concept was produced, and presented in 2004, to celebrate the 100th anniversary of the meeting of businessman Charles Rolls and engineer Sir Henry Royce in 1904.

In 2006, the 101EX, a grand tourer coupe prototype that directly followed the 100EX concept of a possible new line-topping two-door Rolls-Royce, was presented at the 2006 Geneva International Auto Show.

The 101EX shares its aluminium space frame chassis technology with the 2003 Phantom, albeit in a shortened version. The car is 9.5 in (241 mm) shorter than the Phantom saloon, with a lower roofline and shallower glass area. Power comes from the BMW 6.75L V12 engine.

The updated body styling of the 101EX would eventually serve as the basis for the Phantom Drophead Coupé and Phantom Coupé. The latter car was featured in the film Johnny English Reborn, and for the film Rowan Atkinson persuaded BMW to fit one of the three or four V16s originally developed for the 2003 Phantom saloon into the movie coupé, to which BMW agreed.^[1]

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