1956 Armstrong Siddeley Sapphire vs. 1984 Isuzu Piazza
To start off, 1984 Isuzu Piazza is newer by 28 year(s). Which means there will be less support and parts availability for 1956 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1956 Armstrong Siddeley Sapphire would be higher. At 2,307 cc (6 cylinders), 1956 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1984 Isuzu Piazza (148 HP @ 5400 RPM) has 63 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1984 Isuzu Piazza should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1956 Armstrong Siddeley Sapphire weights approximately 80 kg more than 1984 Isuzu Piazza.
Let's talk about torque, 1984 Isuzu Piazza (226 Nm @ 3000 RPM) has 66 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1984 Isuzu Piazza will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1984 Isuzu Piazza | |
| Make | Armstrong Siddeley | Isuzu |
| Model | Sapphire | Piazza |
| Year Released | 1956 | 1984 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 148 HP |
| Engine RPM | 4400 RPM | 5400 RPM |
| Torque | 160 Nm | 226 Nm |
| Torque RPM | 1750 RPM | 3000 RPM |
| Engine Bore Size | 70 mm | 88 mm |
| Engine Stroke Size | 100 mm | 82 mm |
| Engine Compression Ratio | 7.5:1 | 7.9:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1360 kg | 1280 kg |
| Vehicle Length | 4580 mm | 4290 mm |
| Vehicle Width | 1730 mm | 1610 mm |
| Vehicle Height | 1570 mm | 1330 mm |
| Wheelbase Size | 2900 mm | 2510 mm |
