2007 Mazda 6 vs. 1991 Mitsubishi Sigma
To start off, 2007 Mazda 6 is newer by 16 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 42 more horse power than 2007 Mazda 6. (134 HP @ 3500 RPM) In normal driving conditions, 1991 Mitsubishi Sigma should accelerate faster than 2007 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mazda 6 weights approximately 70 kg more than 1991 Mitsubishi Sigma.
Let's talk about torque, 2007 Mazda 6 (310 Nm @ 2000 RPM) has 59 more torque (in Nm) than 1991 Mitsubishi Sigma. (251 Nm @ 3000 RPM). This means 2007 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mitsubishi Sigma.
Compare all specifications:
| 2007 Mazda 6 | 1991 Mitsubishi Sigma | |
| Make | Mazda | Mitsubishi |
| Model | 6 | Sigma |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2972 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 134 HP | 176 HP |
| Engine RPM | 3500 RPM | 5500 RPM |
| Torque | 310 Nm | 251 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Fuel Type | Diesel | Gasoline |
| Vehicle Weight | 1540 kg | 1470 kg |
| Vehicle Length | 4710 mm | 4760 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1490 mm | 1440 mm |
| Wheelbase Size | 2680 mm | 2730 mm |
