2006 Cadillac STS vs. 1981 Isuzu Piazza
To start off, 2006 Cadillac STS is newer by 25 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 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (253 HP @ 6500 RPM) has 105 more horse power than 1981 Isuzu Piazza. (148 HP @ 5400 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 1981 Isuzu Piazza. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 502 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, 2006 Cadillac STS (342 Nm @ 3200 RPM) has 116 more torque (in Nm) than 1981 Isuzu Piazza. (226 Nm @ 3000 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1981 Isuzu Piazza.
Compare all specifications:
| 2006 Cadillac STS | 1981 Isuzu Piazza | |
| Make | Cadillac | Isuzu |
| Model | STS | Piazza |
| Year Released | 2006 | 1981 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 253 HP | 148 HP |
| Engine RPM | 6500 RPM | 5400 RPM |
| Torque | 342 Nm | 226 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Engine Bore Size | 94 mm | 88 mm |
| Engine Stroke Size | 85.6 mm | 82 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1782 kg | 1280 kg |
| Vehicle Length | 4990 mm | 4290 mm |
| Vehicle Width | 1850 mm | 1610 mm |
| Vehicle Height | 1470 mm | 1330 mm |
| Wheelbase Size | 2960 mm | 2510 mm |
