1958 Armstrong Siddeley Star Sapphire vs. 1991 Porsche 964
To start off, 1991 Porsche 964 is newer by 33 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, 1991 Porsche 964 (261 HP @ 6100 RPM) has 116 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 1991 Porsche 964 should accelerate faster than 1958 Armstrong Siddeley Star Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1958 Armstrong Siddeley Star Sapphire weights approximately 573 kg more than 1991 Porsche 964.
Because 1991 Porsche 964 is four wheel drive (4WD), it will have significant more traction and grip than 1958 Armstrong Siddeley Star Sapphire. In wet, icy, snow, or gravel driving conditions, 1991 Porsche 964 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, 1991 Porsche 964 (318 Nm @ 4800 RPM) has 6 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 1991 Porsche 964 will have an easier job in driving up hills or pulling heavy equipment than 1958 Armstrong Siddeley Star Sapphire. 1958 Armstrong Siddeley Star Sapphire has automatic transmission and 1991 Porsche 964 has manual transmission. 1991 Porsche 964 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1958 Armstrong Siddeley Star Sapphire will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1958 Armstrong Siddeley Star Sapphire | 1991 Porsche 964 | |
| Make | Armstrong Siddeley | Porsche |
| Model | Star Sapphire | 964 |
| Year Released | 1958 | 1991 |
| Engine Position | Front | Rear |
| Engine Size | 3990 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 145 HP | 261 HP |
| Engine RPM | 4250 RPM | 6100 RPM |
| Torque | 312 Nm | 318 Nm |
| Torque RPM | 2000 RPM | 4800 RPM |
| Engine Bore Size | 97.1 mm | 100.1 mm |
| Engine Stroke Size | 90 mm | 76.4 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1778 kg | 1205 kg |
| Vehicle Length | 4940 mm | 4260 mm |
| Vehicle Width | 1890 mm | 1660 mm |
| Vehicle Height | 1580 mm | 1330 mm |
| Wheelbase Size | 2900 mm | 2280 mm |
| Fuel Tank Capacity | 72 L | 73 L |
