1958 Armstrong Siddeley Star Sapphire vs. 2013 BMW 7 Series
To start off, 2013 BMW 7 Series is newer by 55 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 3,990 cc (6 cylinders), 1958 Armstrong Siddeley Star Sapphire is equipped with a bigger engine. In terms of performance, 2013 BMW 7 Series (311 HP @ 5800 RPM) has 166 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 2013 BMW 7 Series should accelerate faster than 1958 Armstrong Siddeley Star Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 7 Series weights approximately 195 kg more than 1958 Armstrong Siddeley Star Sapphire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2013 BMW 7 Series (447 Nm @ 4500 RPM) has 135 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 2013 BMW 7 Series 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 | 2013 BMW 7 Series | |
| Make | Armstrong Siddeley | BMW |
| Model | Star Sapphire | 7 Series |
| Year Released | 1958 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 145 HP | 311 HP |
| Engine RPM | 4250 RPM | 5800 RPM |
| Torque | 312 Nm | 447 Nm |
| Torque RPM | 2000 RPM | 4500 RPM |
| Engine Bore Size | 97.1 mm | 84 mm |
| Engine Stroke Size | 90 mm | 89 mm |
| Engine Compression Ratio | 7.5:1 | 10.2 :1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 8-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1778 kg | 1973 kg |
| Vehicle Length | 4940 mm | 5214 mm |
| Vehicle Width | 1890 mm | 2134 mm |
| Vehicle Height | 1580 mm | 1481 mm |
| Wheelbase Size | 2900 mm | 3210 mm |
| Fuel Tank Capacity | 72 L | 80 L |
