1991 Mitsubishi Sigma vs. 2004 Opel Vectra
To start off, 2004 Opel Vectra is newer by 13 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 (202 HP @ 6000 RPM) has 94 more horse power than 2004 Opel Vectra. (108 HP @ 5600 RPM). In normal driving conditions, 1991 Mitsubishi Sigma should accelerate faster than 2004 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mitsubishi Sigma weights approximately 240 kg more than 2004 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1991 Mitsubishi Sigma (270 Nm @ 3000 RPM) has 105 more torque (in Nm) than 2004 Opel Vectra. (165 Nm @ 3800 RPM). This means 1991 Mitsubishi Sigma will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Vectra.
Compare all specifications:
| 1991 Mitsubishi Sigma | 2004 Opel Vectra | |
| Make | Mitsubishi | Opel |
| Model | Sigma | Vectra |
| Year Released | 1991 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2972 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 202 HP | 108 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 270 Nm | 165 Nm |
| Torque RPM | 3000 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1580 kg | 1340 kg |
| Vehicle Length | 4760 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1510 mm |
| Wheelbase Size | 2730 mm | 2710 mm |
