1986 Isuzu Piazza vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 21 year(s). Which means there will be less support and parts availability for 1986 Isuzu Piazza. In addition, the cost of maintenance, including insurance, on 1986 Isuzu Piazza would be higher. At 1,998 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (168 HP @ 5200 RPM) has 20 more horse power than 1986 Isuzu Piazza. (148 HP @ 5400 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 1986 Isuzu Piazza. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 141 kg more than 1986 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 Astra (250 Nm @ 1950 RPM) has 24 more torque (in Nm) than 1986 Isuzu Piazza. (226 Nm @ 3000 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1986 Isuzu Piazza.
Compare all specifications:
| 1986 Isuzu Piazza | 2007 Opel Astra | |
| Make | Isuzu | Opel |
| Model | Piazza | Astra |
| Year Released | 1986 | 2007 |
| Body Type | Hatchback | Station Wagon |
| 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 | 168 HP |
| Engine RPM | 5400 RPM | 5200 RPM |
| Torque | 226 Nm | 250 Nm |
| Torque RPM | 3000 RPM | 1950 RPM |
| Engine Bore Size | 88 mm | 86.1 mm |
| Engine Stroke Size | 82 mm | 86 mm |
| Engine Compression Ratio | 7.9:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1284 kg | 1425 kg |
| Vehicle Length | 4290 mm | 4520 mm |
| Vehicle Width | 1610 mm | 1800 mm |
| Vehicle Height | 1330 mm | 1510 mm |
| Wheelbase Size | 2510 mm | 2710 mm |
