1958 Armstrong Siddeley Star Sapphire vs. 1999 Pontiac Bonneville
To start off, 1999 Pontiac Bonneville is newer by 41 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, 1999 Pontiac Bonneville (240 HP @ 5200 RPM) has 95 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 1999 Pontiac Bonneville 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 31 kg more than 1999 Pontiac Bonneville.
Because 1958 Armstrong Siddeley Star 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 1958 Armstrong Siddeley Star Sapphire. However, in wet, icy, snow, or gravel driving conditions, 1999 Pontiac Bonneville, 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, 1999 Pontiac Bonneville (380 Nm @ 3600 RPM) has 68 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 1999 Pontiac Bonneville 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 | 1999 Pontiac Bonneville | |
| Make | Armstrong Siddeley | Pontiac |
| Model | Star Sapphire | Bonneville |
| Year Released | 1958 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 145 HP | 240 HP |
| Engine RPM | 4250 RPM | 5200 RPM |
| Torque | 312 Nm | 380 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Bore Size | 97.1 mm | 96.5 mm |
| Engine Stroke Size | 90 mm | 86.4 mm |
| Engine Compression Ratio | 7.5:1 | 9.0:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1778 kg | 1747 kg |
| Vehicle Length | 4940 mm | 5150 mm |
| Vehicle Width | 1890 mm | 1890 mm |
| Vehicle Height | 1580 mm | 1440 mm |
| Wheelbase Size | 2900 mm | 2810 mm |
| Fuel Tank Capacity | 72 L | 70 L |
