1955 Armstrong Siddeley Sapphire vs. 2006 Jeep Commander
To start off, 2006 Jeep Commander is newer by 51 year(s). Which means there will be less support and parts availability for 1955 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1955 Armstrong Siddeley Sapphire would be higher. At 5,653 cc (8 cylinders), 2006 Jeep Commander is equipped with a bigger engine. In terms of performance, 2006 Jeep Commander (322 HP @ 5000 RPM) has 237 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 2006 Jeep Commander should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 2006 Jeep Commander weights approximately 995 kg more than 1955 Armstrong Siddeley Sapphire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Jeep Commander is four wheel drive (4WD), it will have significant more traction and grip than 1955 Armstrong Siddeley Sapphire. In wet, icy, snow, or gravel driving conditions, 2006 Jeep Commander 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 Jeep Commander (500 Nm @ 4000 RPM) has 340 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 2006 Jeep Commander will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire. 2006 Jeep Commander has automatic transmission and 1955 Armstrong Siddeley Sapphire has manual transmission. 1955 Armstrong Siddeley Sapphire will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Jeep Commander will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 2006 Jeep Commander | |
| Make | Armstrong Siddeley | Jeep |
| Model | Sapphire | Commander |
| Year Released | 1955 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 5653 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 322 HP |
| Engine RPM | 4400 RPM | 5000 RPM |
| Torque | 160 Nm | 500 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 70 mm | 99.5 mm |
| Engine Stroke Size | 100 mm | 90.9 mm |
| Engine Compression Ratio | 7.5:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1360 kg | 2355 kg |
| Vehicle Length | 4580 mm | 4790 mm |
| Vehicle Width | 1730 mm | 1910 mm |
| Vehicle Height | 1570 mm | 1830 mm |
| Wheelbase Size | 2900 mm | 2790 mm |
