1984 Isuzu Piazza vs. 1981 Holden Commodore
To start off, 1984 Isuzu Piazza is newer by 3 year(s). Which means there will be less support and parts availability for 1981 Holden Commodore. In addition, the cost of maintenance, including insurance, on 1981 Holden Commodore would be higher. At 2,837 cc (6 cylinders), 1981 Holden Commodore is equipped with a bigger engine. In terms of performance, 1984 Isuzu Piazza (148 HP @ 5400 RPM) has 46 more horse power than 1981 Holden Commodore. (102 HP @ 4400 RPM). In normal driving conditions, 1984 Isuzu Piazza should accelerate faster than 1981 Holden Commodore. With that said, vehicle weight also plays an important factor in acceleration. 1984 Isuzu Piazza weights approximately 60 kg more than 1981 Holden Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1984 Isuzu Piazza (226 Nm @ 3000 RPM) has 34 more torque (in Nm) than 1981 Holden Commodore. (192 Nm @ 2800 RPM). This means 1984 Isuzu Piazza will have an easier job in driving up hills or pulling heavy equipment than 1981 Holden Commodore.
Compare all specifications:
| 1984 Isuzu Piazza | 1981 Holden Commodore | |
| Make | Isuzu | Holden |
| Model | Piazza | Commodore |
| Year Released | 1984 | 1981 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 2837 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 102 HP |
| Engine RPM | 5400 RPM | 4400 RPM |
| Torque | 226 Nm | 192 Nm |
| Torque RPM | 3000 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1280 kg | 1220 kg |
| Vehicle Length | 4290 mm | 4710 mm |
| Vehicle Width | 1610 mm | 1730 mm |
| Vehicle Height | 1330 mm | 1370 mm |
| Wheelbase Size | 2510 mm | 2670 mm |
