1979 Mazda 929 vs. 2004 Opel Signum
To start off, 2004 Opel Signum is newer by 25 year(s). Which means there will be less support and parts availability for 1979 Mazda 929. In addition, the cost of maintenance, including insurance, on 1979 Mazda 929 would be higher. At 1,995 cc (4 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (173 HP @ 5500 RPM) has 90 more horse power than 1979 Mazda 929. (83 HP @ 5000 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 1979 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 490 kg more than 1979 Mazda 929. 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 (265 Nm @ 2500 RPM) has 131 more torque (in Nm) than 1979 Mazda 929. (134 Nm @ 3000 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 929.
Compare all specifications:
| 1979 Mazda 929 | 2004 Opel Signum | |
| Make | Mazda | Opel |
| Model | 929 | Signum |
| Year Released | 1979 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1767 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 83 HP | 173 HP |
| Engine RPM | 5000 RPM | 5500 RPM |
| Torque | 134 Nm | 265 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 80 mm | 86 mm |
| Engine Stroke Size | 88 mm | 86 mm |
| Engine Compression Ratio | 8.6:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1070 kg | 1560 kg |
| Vehicle Length | 4410 mm | 4640 mm |
| Vehicle Width | 1670 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2520 mm | 2840 mm |
| Fuel Tank Capacity | 55 L | 60 L |
