1956 Armstrong Siddeley Sapphire vs. 2006 BMW X5
To start off, 2006 BMW X5 is newer by 50 year(s). Which means there will be less support and parts availability for 1956 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1956 Armstrong Siddeley Sapphire would be higher. At 4,799 cc (8 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (355 HP @ 6200 RPM) has 270 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 2006 BMW X5 should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 842 kg more than 1956 Armstrong Siddeley Sapphire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1956 Armstrong Siddeley 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 (490 Nm @ 3600 RPM) has 330 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire. 2006 BMW X5 has automatic transmission and 1956 Armstrong Siddeley Sapphire has manual transmission. 1956 Armstrong Siddeley Sapphire will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 2006 BMW X5 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | X5 |
| Year Released | 1956 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 355 HP |
| Engine RPM | 4400 RPM | 6200 RPM |
| Torque | 160 Nm | 490 Nm |
| Torque RPM | 1750 RPM | 3600 RPM |
| Engine Bore Size | 70 mm | 93 mm |
| Engine Stroke Size | 100 mm | 88.3 mm |
| Engine Compression Ratio | 7.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1360 kg | 2202 kg |
| Vehicle Length | 4580 mm | 4670 mm |
| Vehicle Width | 1730 mm | 1880 mm |
| Vehicle Height | 1570 mm | 1710 mm |
| Wheelbase Size | 2900 mm | 2830 mm |
