2008 Porsche 911 vs. 1991 Rolls-Royce Silver Spur
To start off, 2008 Porsche 911 is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Rolls-Royce Silver Spur. In addition, the cost of maintenance, including insurance, on 1991 Rolls-Royce Silver Spur would be higher. At 6,750 cc (8 cylinders), 1991 Rolls-Royce Silver Spur is equipped with a bigger engine. In terms of performance, 2008 Porsche 911 (350 HP @ 6600 RPM) has 49 more horse power than 1991 Rolls-Royce Silver Spur. (301 HP @ 4000 RPM). In normal driving conditions, 2008 Porsche 911 should accelerate faster than 1991 Rolls-Royce Silver Spur. With that said, vehicle weight also plays an important factor in acceleration. 1991 Rolls-Royce Silver Spur weights approximately 934 kg more than 2008 Porsche 911.
Because 2008 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Rolls-Royce Silver Spur. In wet, icy, snow, or gravel driving conditions, 2008 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, 1991 Rolls-Royce Silver Spur (600 Nm @ 2000 RPM) has 200 more torque (in Nm) than 2008 Porsche 911. (400 Nm @ 4600 RPM). This means 1991 Rolls-Royce Silver Spur will have an easier job in driving up hills or pulling heavy equipment than 2008 Porsche 911.
Compare all specifications:
| 2008 Porsche 911 | 1991 Rolls-Royce Silver Spur | |
| Make | Porsche | Rolls-Royce |
| Model | 911 | Silver Spur |
| Year Released | 2008 | 1991 |
| Engine Position | Rear | Front |
| Engine Size | 3824 cc | 6750 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Horse Power | 350 HP | 301 HP |
| Engine RPM | 6600 RPM | 4000 RPM |
| Torque | 400 Nm | 600 Nm |
| Torque RPM | 4600 RPM | 2000 RPM |
| Engine Bore Size | 99 mm | 104.1 mm |
| Engine Stroke Size | 82.8 mm | 99.1 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1536 kg | 2470 kg |
| Vehicle Length | 4430 mm | 5400 mm |
| Vehicle Width | 1860 mm | 1890 mm |
| Vehicle Height | 1310 mm | 1490 mm |
| Wheelbase Size | 2360 mm | 3170 mm |
| Fuel Tank Capacity | 67 L | 108 L |
