1958 Armstrong Siddeley Star Sapphire vs. 2006 Infiniti QX56
To start off, 2006 Infiniti QX56 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 5,555 cc (8 cylinders), 2006 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2006 Infiniti QX56 (315 HP @ 4900 RPM) has 170 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 2006 Infiniti QX56 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 458 kg more than 2006 Infiniti QX56.
Because 2006 Infiniti QX56 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 Infiniti QX56 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 Infiniti QX56 (529 Nm @ 3600 RPM) has 217 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 2006 Infiniti QX56 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 Infiniti QX56 | |
| Make | Armstrong Siddeley | Infiniti |
| Model | Star Sapphire | QX56 |
| Year Released | 1958 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 5555 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 145 HP | 315 HP |
| Engine RPM | 4250 RPM | 4900 RPM |
| Torque | 312 Nm | 529 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Bore Size | 97.1 mm | 98 mm |
| Engine Stroke Size | 90 mm | 92 mm |
| Engine Compression Ratio | 7.5:1 | 9.8:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1778 kg | 1320 kg |
| Vehicle Length | 4940 mm | 5260 mm |
| Vehicle Width | 1890 mm | 2010 mm |
| Vehicle Height | 1580 mm | 1980 mm |
| Wheelbase Size | 2900 mm | 3140 mm |
| Fuel Tank Capacity | 72 L | 106 L |
