1956 Armstrong Siddeley Sapphire vs. 2006 Rover 75
To start off, 2006 Rover 75 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 2,497 cc (6 cylinders), 2006 Rover 75 is equipped with a bigger engine. In terms of performance, 2006 Rover 75 (175 HP @ 6250 RPM) has 90 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 2006 Rover 75 should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 2006 Rover 75 weights approximately 176 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 1956 Armstrong Siddeley Sapphire is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1956 Armstrong Siddeley Sapphire. However, in wet, icy, snow, or gravel driving conditions, 2006 Rover 75, being front wheel drive (FWD), will offer much better control with better grip. 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 Rover 75 (240 Nm @ 4000 RPM) has 80 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 2006 Rover 75 will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 2006 Rover 75 | |
| Make | Armstrong Siddeley | Rover |
| Model | Sapphire | 75 |
| Year Released | 1956 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 175 HP |
| Engine RPM | 4400 RPM | 6250 RPM |
| Torque | 160 Nm | 240 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 70 mm | 80 mm |
| Engine Stroke Size | 100 mm | 82.8 mm |
| Engine Compression Ratio | 7.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1360 kg | 1536 kg |
| Vehicle Length | 4580 mm | 4750 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1570 mm | 1430 mm |
| Wheelbase Size | 2900 mm | 2750 mm |
