1981 Isuzu Piazza vs. 1991 Opel Astra
To start off, 1991 Opel Astra is newer by 10 year(s). Which means there will be less support and parts availability for 1981 Isuzu Piazza. In addition, the cost of maintenance, including insurance, on 1981 Isuzu Piazza would be higher. At 1,994 cc (4 cylinders), 1981 Isuzu Piazza is equipped with a bigger engine. In terms of performance, 1981 Isuzu Piazza (148 HP @ 5400 RPM) has 66 more horse power than 1991 Opel Astra. (82 HP @ 5800 RPM). In normal driving conditions, 1981 Isuzu Piazza should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1981 Isuzu Piazza weights approximately 255 kg more than 1991 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1981 Isuzu Piazza (226 Nm @ 3000 RPM) has 113 more torque (in Nm) than 1991 Opel Astra. (113 Nm @ 3400 RPM). This means 1981 Isuzu Piazza will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1981 Isuzu Piazza | 1991 Opel Astra | |
| Make | Isuzu | Opel |
| Model | Piazza | Astra |
| Year Released | 1981 | 1991 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1994 cc | 1389 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 82 HP |
| Engine RPM | 5400 RPM | 5800 RPM |
| Torque | 226 Nm | 113 Nm |
| Torque RPM | 3000 RPM | 3400 RPM |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1280 kg | 1025 kg |
| Vehicle Length | 4290 mm | 4280 mm |
| Vehicle Width | 1610 mm | 1690 mm |
| Vehicle Height | 1330 mm | 1480 mm |
| Wheelbase Size | 2510 mm | 2450 mm |
