Comparison BMW Z4 (E85) 3.0i (231 Hp) & Rolls-Royce Phantom VIII Extended Wheelbase 6.7 V12 (571 Hp) Automatic
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| Brand: | BMW | Rolls-Royce |
| Model: | Z4 | Phantom |
| Generation: | Z4 (E85) | Phantom VIII Extended Wheelbase |
| Engine / modification: | 3.0i (231 Hp) | 6.7 V12 (571 Hp) Automatic |
| Production start: | 2002 year | 2017 year |
| Production end: | 2006 year | |
| Coupe type: | Cabriolet | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 2 | 4 |
| Fuel consumption / economy - urban: | 13.5 l/100 km | 21.3 l/100 km |
| Fuel consumption / economy - extra urban: | 6.6 l/100 km | 9.7 l/100 km |
| Fuel consumption / economy - combined: | 7.5 l/100 km | 13.9 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 55 l | |
| Emission standard: | Euro 6 | |
| CO2 emissions: | 319 g/km | |
| Power: | 231 hp | 571 hp |
| Max power in: | 5900 rpm. | 5000 rpm. |
| Maximum speed: | 244 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 5.9 sec | 5.4 sec |
| Torque: | 300 Nm @ 3500 rpm. | 900 Nm @ 1700 rpm. |
| Model Engine: | M54B30 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2979 cm3 | 6749 cm3 |
| Engine oil capacity: | 6.5 l | |
| Coolant: | 8.3 l | |
| Fuel System: | Multi-point injection | Direct injection |
| Aspiration / Turbine: | BiTurbo | |
| Position of cylinders: | Inline | V engine |
| Valvetrain: | DOHC | |
| Number of cylinders: | 6 | 12 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 10.2 | 10 |
| Piston Stroke: | 89.6 mm | |
| Cylinder Bore: | 84 mm | |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 | |
| Number of Gears (manual transmission): | 6 | |
| Length: | 4091 mm | 5982 mm |
| Width: | 1781 mm | 2018 mm |
| Height: | 1299 mm | 1656 mm |
| Wheelbase: | 2495 mm | 3772 mm |
| Front track: | 1473 mm | |
| Rear (Back) track: | 1523 mm | |
| Minimum volume of Luggage (trunk): | 300 l | |
| Front suspension: | The depreciated rack | |
| Rear suspension: | Helical spring | |
| Max weight: | 1590 kg | |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1365 kg | 2610 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering |
| Minimum turning circle (turning diameter): | 9.8 m | 13.77 m |
| Tire size: | 225/45 R17 | |
| Wheel rims size: | 8J x 17 |