1991 Mitsubishi Sigma vs. 1978 Mazda Cosmo
To start off, 1991 Mitsubishi Sigma is newer by 13 year(s). Which means there will be less support and parts availability for 1978 Mazda Cosmo. In addition, the cost of maintenance, including insurance, on 1978 Mazda Cosmo 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 109 more horse power than 1978 Mazda Cosmo. (93 HP @ 5500 RPM). In normal driving conditions, 1991 Mitsubishi Sigma should accelerate faster than 1978 Mazda Cosmo. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mitsubishi Sigma weights approximately 488 kg more than 1978 Mazda Cosmo. 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 120 more torque (in Nm) than 1978 Mazda Cosmo. (150 Nm @ 3300 RPM). This means 1991 Mitsubishi Sigma will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda Cosmo.
Compare all specifications:
| 1991 Mitsubishi Sigma | 1978 Mazda Cosmo | |
| Make | Mitsubishi | Mazda |
| Model | Sigma | Cosmo |
| Year Released | 1991 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2972 cc | 1769 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 202 HP | 93 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 270 Nm | 150 Nm |
| Torque RPM | 3000 RPM | 3300 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1580 kg | 1092 kg |
| Vehicle Length | 4760 mm | 4480 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1440 mm | 1340 mm |
| Wheelbase Size | 2730 mm | 2520 mm |
