2007 Alpina D3 vs. 1955 Armstrong Siddeley Sapphire
To start off, 2007 Alpina D3 is newer by 52 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 3,346 cc (6 cylinders), 2007 Alpina D3 is equipped with a bigger engine. In terms of performance, 2007 Alpina D3 (301 HP @ 6300 RPM) has 183 more horse power than 1955 Armstrong Siddeley Sapphire. (118 HP @ 5000 RPM). In normal driving conditions, 2007 Alpina D3 should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1955 Armstrong Siddeley Sapphire weights approximately 200 kg more than 2007 Alpina D3.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2007 Alpina D3 (362 Nm @ 4800 RPM) has 173 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (189 Nm @ 3500 RPM). This means 2007 Alpina D3 will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire.
Compare all specifications:
| 2007 Alpina D3 | 1955 Armstrong Siddeley Sapphire | |
| Make | Alpina | Armstrong Siddeley |
| Model | D3 | Sapphire |
| Year Released | 2007 | 1955 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2290 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 301 HP | 118 HP |
| Engine RPM | 6300 RPM | 5000 RPM |
| Torque | 362 Nm | 189 Nm |
| Torque RPM | 4800 RPM | 3500 RPM |
| Engine Compression Ratio | 10.2:1 | 7.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 271 km/hour | 155 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1650 kg |
| Vehicle Length | 4490 mm | 4580 mm |
| Vehicle Width | 1760 mm | 1750 mm |
| Vehicle Height | 1370 mm | 1570 mm |
| Wheelbase Size | 2730 mm | 2900 mm |
| Fuel Tank Capacity | 63 L | 72 L |
