1981 Isuzu Piazza vs. 2000 Opel Omega
To start off, 2000 Opel Omega is newer by 19 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 1,998 cc (4 cylinders), 2000 Opel Omega is equipped with a bigger engine. In terms of performance, 1981 Isuzu Piazza (148 HP @ 5400 RPM) has 13 more horse power than 2000 Opel Omega. (135 HP @ 5600 RPM). In normal driving conditions, 1981 Isuzu Piazza should accelerate faster than 2000 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2000 Opel Omega weights approximately 350 kg more than 1981 Isuzu Piazza.
Let's talk about torque, 1981 Isuzu Piazza (226 Nm @ 3000 RPM) has 41 more torque (in Nm) than 2000 Opel Omega. (185 Nm @ 4000 RPM). This means 1981 Isuzu Piazza will have an easier job in driving up hills or pulling heavy equipment than 2000 Opel Omega.
Compare all specifications:
| 1981 Isuzu Piazza | 2000 Opel Omega | |
| Make | Isuzu | Opel |
| Model | Piazza | Omega |
| Year Released | 1981 | 2000 |
| Engine Position | Front | Front |
| Engine Size | 1994 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 135 HP |
| Engine RPM | 5400 RPM | 5600 RPM |
| Torque | 226 Nm | 185 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 88 mm | 86 mm |
| Engine Stroke Size | 82 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1280 kg | 1630 kg |
| Vehicle Length | 4290 mm | 4900 mm |
| Vehicle Width | 1610 mm | 1790 mm |
| Vehicle Height | 1330 mm | 1510 mm |
| Wheelbase Size | 2510 mm | 2740 mm |
