1978 Mazda 929 vs. 1990 Opel Omega
To start off, 1990 Opel Omega is newer by 12 year(s). Which means there will be less support and parts availability for 1978 Mazda 929. In addition, the cost of maintenance, including insurance, on 1978 Mazda 929 would be higher. At 1,796 cc (4 cylinders), 1990 Opel Omega is equipped with a bigger engine. In terms of performance, 1990 Opel Omega (89 HP @ 5200 RPM) has 6 more horse power than 1978 Mazda 929. (83 HP @ 5000 RPM) In normal driving conditions, 1990 Opel Omega should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1990 Opel Omega weights approximately 136 kg more than 1978 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, 1990 Opel Omega (151 Nm @ 3400 RPM) has 17 more torque (in Nm) than 1978 Mazda 929. (134 Nm @ 3000 RPM). This means 1990 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 1978 Mazda 929 | 1990 Opel Omega | |
| Make | Mazda | Opel |
| Model | 929 | Omega |
| Year Released | 1978 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 1769 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 83 HP | 89 HP |
| Engine RPM | 5000 RPM | 5200 RPM |
| Torque | 134 Nm | 151 Nm |
| Torque RPM | 3000 RPM | 3400 RPM |
| Engine Bore Size | 80 mm | 84.8 mm |
| Engine Stroke Size | 88 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1070 kg | 1206 kg |
| Vehicle Length | 4410 mm | 4740 mm |
| Vehicle Width | 1670 mm | 1780 mm |
| Vehicle Height | 1420 mm | 1490 mm |
| Wheelbase Size | 2520 mm | 2740 mm |
