1981 Mazda 323 vs. 2004 Opel Signum
To start off, 2004 Opel Signum is newer by 23 year(s). Which means there will be less support and parts availability for 1981 Mazda 323. In addition, the cost of maintenance, including insurance, on 1981 Mazda 323 would be higher. At 1,796 cc (4 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (125 HP @ 5600 RPM) has 72 more horse power than 1981 Mazda 323. (53 HP @ 6000 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 1981 Mazda 323. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 530 kg more than 1981 Mazda 323. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 Opel Signum (170 Nm @ 3800 RPM) has 91 more torque (in Nm) than 1981 Mazda 323. (79 Nm @ 4000 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1981 Mazda 323.
Compare all specifications:
| 1981 Mazda 323 | 2004 Opel Signum | |
| Make | Mazda | Opel |
| Model | 323 | Signum |
| Year Released | 1981 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1069 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 53 HP | 125 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 79 Nm | 170 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 850 kg | 1380 kg |
| Vehicle Length | 3960 mm | 4640 mm |
| Vehicle Width | 1640 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2370 mm | 2700 mm |
