1957 Armstrong Siddeley Sapphire vs. 1999 Beijing BJ 2021
To start off, 1999 Beijing BJ 2021 is newer by 42 year(s). Which means there will be less support and parts availability for 1957 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1957 Armstrong Siddeley Sapphire would be higher. At 2,466 cc (4 cylinders), 1999 Beijing BJ 2021 is equipped with a bigger engine. In terms of performance, 1999 Beijing BJ 2021 (100 HP @ 5000 RPM) has 15 more horse power than 1957 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1999 Beijing BJ 2021 should accelerate faster than 1957 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1999 Beijing BJ 2021 weights approximately 120 kg more than 1957 Armstrong Siddeley Sapphire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Beijing BJ 2021 is four wheel drive (4WD), it will have significant more traction and grip than 1957 Armstrong Siddeley Sapphire. In wet, icy, snow, or gravel driving conditions, 1999 Beijing BJ 2021 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, 1999 Beijing BJ 2021 (179 Nm @ 2800 RPM) has 18 more torque (in Nm) than 1957 Armstrong Siddeley Sapphire. (161 Nm @ 1750 RPM). This means 1999 Beijing BJ 2021 will have an easier job in driving up hills or pulling heavy equipment than 1957 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1957 Armstrong Siddeley Sapphire | 1999 Beijing BJ 2021 | |
| Make | Armstrong Siddeley | Beijing |
| Model | Sapphire | BJ 2021 |
| Year Released | 1957 | 1999 |
| Engine Size | 2309 cc | 2466 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 100 HP |
| Engine RPM | 4400 RPM | 5000 RPM |
| Torque | 161 Nm | 179 Nm |
| Torque RPM | 1750 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Vehicle Weight | 1360 kg | 1480 kg |
| Vehicle Length | 4580 mm | 4290 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1570 mm | 1620 mm |
| Wheelbase Size | 2900 mm | 2580 mm |
