2003 Infiniti Q45 vs. 1982 Isuzu Piazza
To start off, 2003 Infiniti Q45 is newer by 21 year(s). Which means there will be less support and parts availability for 1982 Isuzu Piazza. In addition, the cost of maintenance, including insurance, on 1982 Isuzu Piazza would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2003 Infiniti Q45 (340 HP @ 6400 RPM) has 191 more horse power than 1982 Isuzu Piazza. (149 HP @ 5400 RPM). In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 1982 Isuzu Piazza. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti Q45 weights approximately 524 kg more than 1982 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, 2003 Infiniti Q45 (451 Nm @ 4000 RPM) has 226 more torque (in Nm) than 1982 Isuzu Piazza. (225 Nm @ 3000 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 1982 Isuzu Piazza.
Compare all specifications:
| 2003 Infiniti Q45 | 1982 Isuzu Piazza | |
| Make | Infiniti | Isuzu |
| Model | Q45 | Piazza |
| Year Released | 2003 | 1982 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 1994 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 149 HP |
| Engine RPM | 6400 RPM | 5400 RPM |
| Torque | 451 Nm | 225 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Compression Ratio | 10.5:1 | 7.9:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1804 kg | 1280 kg |
| Vehicle Length | 5080 mm | 4290 mm |
| Vehicle Width | 1850 mm | 1610 mm |
| Vehicle Height | 1500 mm | 1330 mm |
| Wheelbase Size | 2880 mm | 2510 mm |
