2003 Infiniti I vs. 1991 Mitsubishi Sigma
To start off, 2003 Infiniti I is newer by 12 year(s). Which means there will be less support and parts availability for 1991 Mitsubishi Sigma. In addition, the cost of maintenance, including insurance, on 1991 Mitsubishi Sigma would be higher. At 2,972 cc (6 cylinders), 1991 Mitsubishi Sigma is equipped with a bigger engine. In terms of performance, 2003 Infiniti I (224 HP @ 5600 RPM) has 22 more horse power than 1991 Mitsubishi Sigma. (202 HP @ 6000 RPM). In normal driving conditions, 2003 Infiniti I should accelerate faster than 1991 Mitsubishi Sigma. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mitsubishi Sigma weights approximately 68 kg more than 2003 Infiniti I.
Let's talk about torque, both vehicles can yield 270 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2003 Infiniti I | 1991 Mitsubishi Sigma | |
| Make | Infiniti | Mitsubishi |
| Model | I | Sigma |
| Year Released | 2003 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2960 cc | 2972 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 224 HP | 202 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 270 Nm | 270 Nm |
| Torque RPM | 4800 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1512 kg | 1580 kg |
| Vehicle Length | 4930 mm | 4760 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2760 mm | 2730 mm |
