2005 Porsche 911 vs. 1999 Rolls-Royce Silver Seraph
To start off, 2005 Porsche 911 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Rolls-Royce Silver Seraph. In addition, the cost of maintenance, including insurance, on 1999 Rolls-Royce Silver Seraph would be higher. At 5,378 cc (12 cylinders), 1999 Rolls-Royce Silver Seraph is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 6000 RPM) has 127 more horse power than 1999 Rolls-Royce Silver Seraph. (318 HP @ 5000 RPM). In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1999 Rolls-Royce Silver Seraph. With that said, vehicle weight also plays an important factor in acceleration. 1999 Rolls-Royce Silver Seraph weights approximately 710 kg more than 2005 Porsche 911.
Let's talk about torque, 2005 Porsche 911 (620 Nm) has 131 more torque (in Nm) than 1999 Rolls-Royce Silver Seraph. (489 Nm). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1999 Rolls-Royce Silver Seraph.
Compare all specifications:
| 2005 Porsche 911 | 1999 Rolls-Royce Silver Seraph | |
| Make | Porsche | Rolls-Royce |
| Model | 911 | Silver Seraph |
| Year Released | 2005 | 1999 |
| Body Type | Coupe | Sedan |
| Engine Position | Rear | Front |
| Engine Size | 3605 cc | 5378 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | boxer | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 445 HP | 318 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 620 Nm | 489 Nm |
| Engine Bore Size | 100 mm | 85 mm |
| Engine Stroke Size | 76 mm | 79 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1590 kg | 2300 kg |
| Vehicle Length | 4440 mm | 5390 mm |
| Vehicle Width | 1840 mm | 2170 mm |
| Vehicle Height | 1300 mm | 1530 mm |
| Wheelbase Size | 2360 mm | 3070 mm |
| Fuel Tank Capacity | 63 L | 94 L |
