1979 Mazda 929 vs. 1977 Opel Monza
To start off, 1979 Mazda 929 is newer by 2 year(s). Which means there will be less support and parts availability for 1977 Opel Monza. In addition, the cost of maintenance, including insurance, on 1977 Opel Monza would be higher. At 1,979 cc (4 cylinders), 1977 Opel Monza is equipped with a bigger engine. In terms of performance, 1977 Opel Monza (115 HP @ 5600 RPM) has 32 more horse power than 1979 Mazda 929. (83 HP @ 5000 RPM) In normal driving conditions, 1977 Opel Monza should accelerate faster than 1979 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1977 Opel Monza weights approximately 265 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, 1977 Opel Monza (162 Nm @ 4200 RPM) has 28 more torque (in Nm) than 1979 Mazda 929. (134 Nm @ 3000 RPM). This means 1977 Opel Monza will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 929.
Compare all specifications:
| 1979 Mazda 929 | 1977 Opel Monza | |
| Make | Mazda | Opel |
| Model | 929 | Monza |
| Year Released | 1979 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1767 cc | 1979 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 83 HP | 115 HP |
| Engine RPM | 5000 RPM | 5600 RPM |
| Torque | 134 Nm | 162 Nm |
| Torque RPM | 3000 RPM | 4200 RPM |
| Engine Bore Size | 80 mm | 95 mm |
| Engine Stroke Size | 88 mm | 69.8 mm |
| Engine Compression Ratio | 8.6:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1070 kg | 1335 kg |
| Vehicle Length | 4410 mm | 4730 mm |
| Vehicle Width | 1670 mm | 1730 mm |
| Vehicle Height | 1420 mm | 1350 mm |
| Wheelbase Size | 2520 mm | 2550 mm |
