1984 Mazda RX-7 vs. 1993 Mitsubishi Sigma
To start off, 1993 Mitsubishi Sigma is newer by 9 year(s). Which means there will be less support and parts availability for 1984 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1984 Mazda RX-7 would be higher. At 2,972 cc (6 cylinders), 1993 Mitsubishi Sigma is equipped with a bigger engine. In terms of performance, 1993 Mitsubishi Sigma (175 HP @ 5500 RPM) has 61 more horse power than 1984 Mazda RX-7. (114 HP @ 6000 RPM) In normal driving conditions, 1993 Mitsubishi Sigma should accelerate faster than 1984 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 1993 Mitsubishi Sigma weights approximately 416 kg more than 1984 Mazda RX-7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1993 Mitsubishi Sigma (251 Nm @ 3000 RPM) has 93 more torque (in Nm) than 1984 Mazda RX-7. (158 Nm @ 4000 RPM). This means 1993 Mitsubishi Sigma will have an easier job in driving up hills or pulling heavy equipment than 1984 Mazda RX-7.
Compare all specifications:
| 1984 Mazda RX-7 | 1993 Mitsubishi Sigma | |
| Make | Mazda | Mitsubishi |
| Model | RX-7 | Sigma |
| Year Released | 1984 | 1993 |
| Engine Position | Front | Front |
| Engine Size | 2292 cc | 2972 cc |
| Engine Type | dual-disk rotary | V |
| Horse Power | 114 HP | 175 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 158 Nm | 251 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1060 kg | 1476 kg |
| Vehicle Length | 4290 mm | 4760 mm |
| Vehicle Width | 1680 mm | 1780 mm |
| Vehicle Height | 1270 mm | 1440 mm |
| Wheelbase Size | 2430 mm | 2730 mm |
