1958 Armstrong Siddeley Star Sapphire vs. 2006 BMW X5
To start off, 2006 BMW X5 is newer by 48 year(s). Which means there will be less support and parts availability for 1958 Armstrong Siddeley Star Sapphire. In addition, the cost of maintenance, including insurance, on 1958 Armstrong Siddeley Star Sapphire would be higher. At 3,990 cc (6 cylinders), 1958 Armstrong Siddeley Star Sapphire is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (181 HP @ 2000 RPM) has 36 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 2006 BMW X5 should accelerate faster than 1958 Armstrong Siddeley Star Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1958 Armstrong Siddeley Star Sapphire weights approximately 148 kg more than 2006 BMW X5.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1958 Armstrong Siddeley Star Sapphire. In wet, icy, snow, or gravel driving conditions, 2006 BMW X5 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, 2006 BMW X5 (410 Nm @ 2000 RPM) has 98 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1958 Armstrong Siddeley Star Sapphire.
Compare all specifications:
| 1958 Armstrong Siddeley Star Sapphire | 2006 BMW X5 | |
| Make | Armstrong Siddeley | BMW |
| Model | Star Sapphire | X5 |
| Year Released | 1958 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 2926 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 145 HP | 181 HP |
| Engine RPM | 4250 RPM | 2000 RPM |
| Torque | 312 Nm | 410 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Compression Ratio | 7.5:1 | 18.0:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1778 kg | 1630 kg |
| Vehicle Length | 4940 mm | 4670 mm |
| Vehicle Width | 1890 mm | 1880 mm |
| Vehicle Height | 1580 mm | 1720 mm |
| Wheelbase Size | 2900 mm | 2830 mm |
| Fuel Tank Capacity | 72 L | 93 L |
