1989 Isuzu Piazza vs. 2007 Opel Vectra
To start off, 2007 Opel Vectra is newer by 18 year(s). Which means there will be less support and parts availability for 1989 Isuzu Piazza. In addition, the cost of maintenance, including insurance, on 1989 Isuzu Piazza would be higher. At 2,958 cc (6 cylinders), 2007 Opel Vectra is equipped with a bigger engine. In terms of performance, 2007 Opel Vectra (175 HP @ 4000 RPM) has 27 more horse power than 1989 Isuzu Piazza. (148 HP @ 5400 RPM) In normal driving conditions, 2007 Opel Vectra should accelerate faster than 1989 Isuzu Piazza. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Vectra weights approximately 333 kg more than 1989 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, 2007 Opel Vectra (370 Nm @ 1900 RPM) has 144 more torque (in Nm) than 1989 Isuzu Piazza. (226 Nm @ 3000 RPM). This means 2007 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 1989 Isuzu Piazza.
Compare all specifications:
| 1989 Isuzu Piazza | 2007 Opel Vectra | |
| Make | Isuzu | Opel |
| Model | Piazza | Vectra |
| Year Released | 1989 | 2007 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1994 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 148 HP | 175 HP |
| Engine RPM | 5400 RPM | 4000 RPM |
| Torque | 226 Nm | 370 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Engine Bore Size | 88.1 mm | 87.5 mm |
| Engine Stroke Size | 82 mm | 82 mm |
| Engine Compression Ratio | 7.9:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1280 kg | 1613 kg |
| Vehicle Length | 4290 mm | 4600 mm |
| Vehicle Width | 1610 mm | 1800 mm |
| Vehicle Height | 1330 mm | 1470 mm |
| Wheelbase Size | 2510 mm | 2710 mm |
