2009 BMW X6 vs. 1991 Rolls-Royce Silver Spur
To start off, 2009 BMW X6 is newer by 18 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, 2009 BMW X6 (401 HP @ 5500 RPM) has 100 more horse power than 1991 Rolls-Royce Silver Spur. (301 HP @ 4000 RPM). In normal driving conditions, 2009 BMW X6 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 205 kg more than 2009 BMW X6.
Because 2009 BMW X6 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, 2009 BMW X6 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, 2009 BMW X6 (610 Nm @ 1750 RPM) has 10 more torque (in Nm) than 1991 Rolls-Royce Silver Spur. (600 Nm @ 2000 RPM). This means 2009 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Rolls-Royce Silver Spur.
Compare all specifications:
| 2009 BMW X6 | 1991 Rolls-Royce Silver Spur | |
| Make | BMW | Rolls-Royce |
| Model | X6 | Silver Spur |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4395 cc | 6750 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 401 HP | 301 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 610 Nm | 600 Nm |
| Torque RPM | 1750 RPM | 2000 RPM |
| Engine Bore Size | 89 mm | 104.1 mm |
| Engine Stroke Size | 88.3 mm | 99.1 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2265 kg | 2470 kg |
| Vehicle Length | 4880 mm | 5400 mm |
| Vehicle Width | 1990 mm | 1890 mm |
| Vehicle Height | 1700 mm | 1490 mm |
| Wheelbase Size | 2940 mm | 3170 mm |
| Fuel Tank Capacity | 85 L | 108 L |
