1981 Isuzu Piazza vs. 1988 Pontiac Grand Prix
To start off, 1988 Pontiac Grand Prix is newer by 7 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 3,097 cc (6 cylinders), 1988 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 1988 Pontiac Grand Prix (205 HP @ 4800 RPM) has 57 more horse power than 1981 Isuzu Piazza. (148 HP @ 5400 RPM) In normal driving conditions, 1988 Pontiac Grand Prix should accelerate faster than 1981 Isuzu Piazza. With that said, vehicle weight also plays an important factor in acceleration. 1988 Pontiac Grand Prix weights approximately 285 kg more than 1981 Isuzu Piazza. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1988 Pontiac Grand Prix (298 Nm @ 3200 RPM) has 72 more torque (in Nm) than 1981 Isuzu Piazza. (226 Nm @ 3000 RPM). This means 1988 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 1981 Isuzu Piazza.
Compare all specifications:
| 1981 Isuzu Piazza | 1988 Pontiac Grand Prix | |
| Make | Isuzu | Pontiac |
| Model | Piazza | Grand Prix |
| Year Released | 1981 | 1988 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1994 cc | 3097 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 148 HP | 205 HP |
| Engine RPM | 5400 RPM | 4800 RPM |
| Torque | 226 Nm | 298 Nm |
| Torque RPM | 3000 RPM | 3200 RPM |
| Engine Bore Size | 88 mm | 89 mm |
| Engine Stroke Size | 82 mm | 84 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1280 kg | 1565 kg |
| Vehicle Length | 4290 mm | 4930 mm |
| Vehicle Width | 1610 mm | 1810 mm |
| Vehicle Height | 1330 mm | 1360 mm |
| Wheelbase Size | 2510 mm | 2740 mm |
