1998 Porsche 911 vs. 2005 Rolls-Royce Phantom
To start off, 2005 Rolls-Royce Phantom is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Porsche 911. In addition, the cost of maintenance, including insurance, on 1998 Porsche 911 would be higher. At 6,748 cc (12 cylinders), 2005 Rolls-Royce Phantom is equipped with a bigger engine. In terms of performance, 2005 Rolls-Royce Phantom (454 HP @ 5350 RPM) has 158 more horse power than 1998 Porsche 911. (296 HP @ 6800 RPM) In normal driving conditions, 2005 Rolls-Royce Phantom should accelerate faster than 1998 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 Rolls-Royce Phantom weights approximately 1250 kg more than 1998 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1998 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Rolls-Royce Phantom. In wet, icy, snow, or gravel driving conditions, 1998 Porsche 911 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Rolls-Royce Phantom (720 Nm @ 3500 RPM) has 370 more torque (in Nm) than 1998 Porsche 911. (350 Nm @ 4600 RPM). This means 2005 Rolls-Royce Phantom will have an easier job in driving up hills or pulling heavy equipment than 1998 Porsche 911.
Compare all specifications:
| 1998 Porsche 911 | 2005 Rolls-Royce Phantom | |
| Make | Porsche | Rolls-Royce |
| Model | 911 | Phantom |
| Year Released | 1998 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Rear | Front |
| Engine Size | 3387 cc | 6748 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 454 HP |
| Engine RPM | 6800 RPM | 5350 RPM |
| Torque | 350 Nm | 720 Nm |
| Torque RPM | 4600 RPM | 3500 RPM |
| Engine Bore Size | 96 mm | 92 mm |
| Engine Stroke Size | 78 mm | 84.6 mm |
| Engine Compression Ratio | 11.3:1 | 11.0:1 |
| Top Speed | 275 km/hour | 240 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1420 kg | 2670 kg |
| Vehicle Length | 4440 mm | 5840 mm |
| Vehicle Width | 1770 mm | 2000 mm |
| Vehicle Height | 1310 mm | 1640 mm |
| Wheelbase Size | 2360 mm | 3830 mm |
| Fuel Tank Capacity | 63 L | 100 L |
