1997 Buick Riviera vs. 1986 Isuzu Piazza
To start off, 1997 Buick Riviera is newer by 11 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 3,790 cc (6 cylinders), 1997 Buick Riviera is equipped with a bigger engine. In terms of performance, 1997 Buick Riviera (180 HP @ 4000 RPM) has 32 more horse power than 1986 Isuzu Piazza. (148 HP @ 5400 RPM). In normal driving conditions, 1997 Buick Riviera should accelerate faster than 1986 Isuzu Piazza. With that said, vehicle weight also plays an important factor in acceleration. 1997 Buick Riviera weights approximately 397 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, 1997 Buick Riviera (364 Nm @ 2400 RPM) has 138 more torque (in Nm) than 1986 Isuzu Piazza. (226 Nm @ 3000 RPM). This means 1997 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1986 Isuzu Piazza.
Compare all specifications:
| 1997 Buick Riviera | 1986 Isuzu Piazza | |
| Make | Buick | Isuzu |
| Model | Riviera | Piazza |
| Year Released | 1997 | 1986 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3790 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 180 HP | 148 HP |
| Engine RPM | 4000 RPM | 5400 RPM |
| Torque | 364 Nm | 226 Nm |
| Torque RPM | 2400 RPM | 3000 RPM |
| Engine Bore Size | 96.5 mm | 88 mm |
| Engine Stroke Size | 86.4 mm | 82 mm |
| Engine Compression Ratio | 8.0:1 | 7.9:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1681 kg | 1284 kg |
| Vehicle Length | 5230 mm | 4290 mm |
| Vehicle Width | 2040 mm | 1610 mm |
| Vehicle Height | 1380 mm | 1330 mm |
| Wheelbase Size | 2900 mm | 2510 mm |
