Rolls-Royce Phantom Drophead Coupe Revealed

World Debut at NAIAS

Press Release

TECHNICAL SPECIFICATIONS: WORLD

Engine & transmission

Engine / cylinders / valves V / 12 / 48

Fuel management Direct injection

Displacement 6749 cc / 411.8 cu in

Stroke 84.6 mm / 3.33 in

Bore 92.0 mm / 3.62 in

Power output @ engine speed 453 bhp / 460 PS (DIN) / 338 kW @ 5350 rpm

Max torque @ engine speed 720 Nm / 531 lb ft @ 3500 rpm

Compression ratio / fuel type 11:1 / premium unleaded1

Transmission type ZF 6HP32

Transmission ratios:

1st / 2nd / 3rd / 4.171 / 2.340 / 1.521 /

4th / 5th / 6th 1.143 / 0.867 / 0.691

Reverse 3.403

Final-drive ratio 3.460

Steering & brakes

Steering type Rack & pinion, speed-sensitive variable-rate
power assistance

Brakes, front / diameter Ventilated disc / 374 mm / 14.7 in

Brakes, rear / diameter Ventilated disc / 370 mm / 14.6 in

Aerodynamics

Drag Cd 0.37

Drag Cd x A 1.004 m2 / 10.8 ft2

Performance2

Top speed 149 mph / 240 km/h (governed)

Acceleration 0-100 km/h 5.9 sec

Wheels (standard PAX alloy)

Tyre, front & rear Michelin PAX 265/790 R540 A 111W

Wheel rim, front & rear PAX 265 x 540 A ALU

Wheels (21 in alloy)

Tyre, front Goodyear EMT 255/50 R21 106W

Wheel size, front 8 in x 21 in

Tyre, rear Goodyear EMT 285/45 R21 109W

Wheel size, rear 9.5 in x 21 in


1. The engine is designed for octane grade 98 fuel; however, it may be run on fuel with a minimum octane grade of 91.

2. Subject to ?nal veri?cation.

TECHNICAL SPECIFICATIONS: US VERSION

Engine & transmission

Engine / cylinders / valves V / 12 / 48

Fuel management Direct injection

Displacement 6749 cc / 411.8 cu in

Stroke 84.6 mm / 3.33 in

Bore 92.0 mm / 3.62 in

Power output @ engine speed 453 bhp / 460 PS (DIN) / 338 kW @ 5350 rpm

Max torque @ engine speed 720 Nm / 531 lb ft @ 3500 rpm

Compression ratio / fuel type 11:1 / premium unleaded1

Transmission type ZF 6HP32

Transmission ratios:

1st / 2nd / 3rd / 4.171 / 2.340 / 1.521 /

4th / 5th / 6th / 1.143 / 0.867 / 0.691

Reverse 3.403

Final-drive ratio 3.460

Steering & brakes

Steering type Rack & pinion, speed-sensitive variable-rate
power assistance

Brakes, front / diameter Ventilated disc / 374 mm / 14.7 in

Brakes, rear / diameter Ventilated disc / 370 mm / 14.6 in

Aerodynamics

Drag Cd 0.37

Drag Cd x A 1.004 m2 / 10.8 ft2

Performance

Top speed 149 mph / 240 km/h (governed)

Acceleration 0-60 mph 5.7 sec



Wheels (standard PAX alloy)4/5

Tire, front & rear Michelin PAX 265/790 R540 A 111W

Wheel rim, front & rear PAX 265 x 540 A ALU

Wheels (21 in alloy)5/6

Tire, front Goodyear EMT 255/50 R21 106W

Wheel size, front 8 in x 21 in

Tire, rear Goodyear EMT 285/45 R21 109W

Wheel size, rear 9.5 in x 21 in


1. The engine is designed for octane grade 98 fuel; however, it may be run on fuel with a minimum octane grade of 91.

2. Manufacturer’s test results. Actual acceleration results may vary depending on speci?cations of the vehicle, road and environmental conditions, testing procedures and driving styles. These results should be used for comparison only and veri?cation should not be attempted on public roads.

3. EPA (Preliminary) – Use estimated mpg for comparison with other cars. Your mileage may vary with options, driving conditions, driving habits, the car’s condition, speed and trip length. Actual highway mileage will probably be less.

4. The Michelin PAX tire system has run-?at capabilities. Michelin PAX is a registered trademark of Michelin.

5. With run-?at tires, you can continue for a distance of at least 100 miles at speeds up to 50 mph; however, when noti?ed, you should check your tire condition at the next available opportunity.

6. The Goodyear Extended Mobility Tire system (EMT) has run-?at capabilities.


Source: Source: Rolls-Royce Motor Cars Ltd.

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