1991 Mitsubishi Sigma vs. 2003 Opel Vectra
To start off, 2003 Opel Vectra 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, 1991 Mitsubishi Sigma (176 HP @ 5500 RPM) has 56 more horse power than 2003 Opel Vectra. (120 HP @ 5800 RPM). In normal driving conditions, 1991 Mitsubishi Sigma should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 20 kg more than 1991 Mitsubishi Sigma.
Let's talk about torque, 1991 Mitsubishi Sigma (251 Nm @ 3000 RPM) has 81 more torque (in Nm) than 2003 Opel Vectra. (170 Nm @ 3800 RPM). This means 1991 Mitsubishi Sigma will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 1991 Mitsubishi Sigma | 2003 Opel Vectra | |
| Make | Mitsubishi | Opel |
| Model | Sigma | Vectra |
| Year Released | 1991 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2972 cc | 1795 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 176 HP | 120 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 251 Nm | 170 Nm |
| Torque RPM | 3000 RPM | 3800 RPM |
| Vehicle Weight | 1470 kg | 1490 kg |
| Vehicle Length | 4760 mm | 4500 mm |
| Vehicle Width | 1780 mm | 1710 mm |
| Vehicle Height | 1440 mm | 1430 mm |
| Wheelbase Size | 2730 mm | 2640 mm |
