2006 BMW Z4 vs. 1991 Mitsubishi Sigma
To start off, 2006 BMW Z4 is newer by 15 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, 2006 BMW Z4 (189 HP @ 6000 RPM) has 13 more horse power than 1991 Mitsubishi Sigma. (176 HP @ 5500 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1991 Mitsubishi Sigma. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mitsubishi Sigma weights approximately 135 kg more than 2006 BMW Z4.
Let's talk about torque, 1991 Mitsubishi Sigma (251 Nm @ 3000 RPM) has 6 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 1991 Mitsubishi Sigma will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 1991 Mitsubishi Sigma | |
| Make | BMW | Mitsubishi |
| Model | Z4 | Sigma |
| Year Released | 2006 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2972 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 189 HP | 176 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 245 Nm | 251 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Vehicle Weight | 1335 kg | 1470 kg |
| Vehicle Length | 4100 mm | 4760 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1310 mm | 1440 mm |
| Wheelbase Size | 2500 mm | 2730 mm |
