1978 Mazda 929 vs. 1975 Opel Manta
To start off, 1978 Mazda 929 is newer by 3 year(s). Which means there will be less support and parts availability for 1975 Opel Manta. In addition, the cost of maintenance, including insurance, on 1975 Opel Manta would be higher. At 1,769 cc (4 cylinders), 1978 Mazda 929 is equipped with a bigger engine. In terms of performance, 1978 Mazda 929 (83 HP @ 5000 RPM) has 16 more horse power than 1975 Opel Manta. (67 HP @ 5200 RPM). In normal driving conditions, 1978 Mazda 929 should accelerate faster than 1975 Opel Manta. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mazda 929 weights approximately 122 kg more than 1975 Opel Manta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1978 Mazda 929 (134 Nm @ 3000 RPM) has 26 more torque (in Nm) than 1975 Opel Manta. (108 Nm @ 3400 RPM). This means 1978 Mazda 929 will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Manta.
Compare all specifications:
| 1978 Mazda 929 | 1975 Opel Manta | |
| Make | Mazda | Opel |
| Model | 929 | Manta |
| Year Released | 1978 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1769 cc | 1584 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 83 HP | 67 HP |
| Engine RPM | 5000 RPM | 5200 RPM |
| Torque | 134 Nm | 108 Nm |
| Torque RPM | 3000 RPM | 3400 RPM |
| Engine Bore Size | 80 mm | 85 mm |
| Engine Stroke Size | 88 mm | 69.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1070 kg | 948 kg |
| Vehicle Length | 4410 mm | 4300 mm |
| Vehicle Width | 1670 mm | 1640 mm |
| Vehicle Height | 1420 mm | 1360 mm |
| Wheelbase Size | 2520 mm | 2440 mm |
