1981 Holden Commodore vs. 1991 Mitsubishi Sigma
To start off, 1991 Mitsubishi Sigma is newer by 10 year(s). Which means there will be less support and parts availability for 1981 Holden Commodore. In addition, the cost of maintenance, including insurance, on 1981 Holden Commodore would be higher. At 4,142 cc (8 cylinders), 1981 Holden Commodore is equipped with a bigger engine. In terms of performance, 1991 Mitsubishi Sigma (176 HP @ 5500 RPM) has 42 more horse power than 1981 Holden Commodore. (134 HP @ 4200 RPM) In normal driving conditions, 1991 Mitsubishi Sigma should accelerate faster than 1981 Holden Commodore. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mitsubishi Sigma weights approximately 120 kg more than 1981 Holden Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1981 Holden Commodore (270 Nm @ 2000 RPM) has 19 more torque (in Nm) than 1991 Mitsubishi Sigma. (251 Nm @ 3000 RPM). This means 1981 Holden Commodore will have an easier job in driving up hills or pulling heavy equipment than 1991 Mitsubishi Sigma.
Compare all specifications:
| 1981 Holden Commodore | 1991 Mitsubishi Sigma | |
| Make | Holden | Mitsubishi |
| Model | Commodore | Sigma |
| Year Released | 1981 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4142 cc | 2972 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 134 HP | 176 HP |
| Engine RPM | 4200 RPM | 5500 RPM |
| Torque | 270 Nm | 251 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1350 kg | 1470 kg |
| Vehicle Length | 4710 mm | 4760 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1370 mm | 1440 mm |
| Wheelbase Size | 2670 mm | 2730 mm |
